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Цитировать (https://img.novosti-kosmonavtiki.ru/185903.jpg) Eutelsat ‏@Eutelsat_SA  (https://twitter.com/Eutelsat_SA)  23 ч.23 часа назад (https://twitter.com/Eutelsat_SA/status/823571161858633733)  
Eutelsat Ретвитнул(а) Airbus Defence&Space
(https://img.novosti-kosmonavtiki.ru/125535.png) All-electric EUTELSAT 172B prepping for launch - (https://img.novosti-kosmonavtiki.ru/125513.png) w/ @arianespace (https://twitter.com/Arianespace) in April - (https://img.novosti-kosmonavtiki.ru/125615.png)To provide #inflight (https://twitter.com/hashtag/inflight?src=hash) connectivity for @PanasonicAero (https://twitter.com/PanasonicAero)
Eutelsat добавил(а),

Цитировать  (https://twitter.com/AirbusDS/status/823537339674820608)
 (https://img.novosti-kosmonavtiki.ru/156544.jpg)
 Airbus Defence&Space  @AirbusDS  
First European-built all-electric #satellite EUTELSAT 172B for @Eutelsat_SA getting ready to fly. https://airbusdefenceandspace.com/newsroom/news-and-features/airbus-defence-and-space-first-european-built-all-electric-satellite-eutelsat-172b-getting-ready-to-fly/ ...

ЦитироватьJanuary 23, 2017 - Press release  
(https://airbusdefenceandspace.com/wp-content/uploads/2017/01/eutel172b.jpg)

EUTELSAT 172B in final testing

[Toulouse, 23/01/2017] - Construction of EUTELSAT 172B, the first high-power all-electric telecommunications satellite built in Europe, is now complete at the Airbus satellite assembly facilities in Toulouse. The fully fledged satellite for Eutelsat is now undergoing final testing before it is sent to Kourou, French Guiana, for an Ariane 5 launch scheduled in April.
EUTELSAT 172B breaks now ground as the first high-power satellite in the 3 tonne class. The satellite combines electric power of 13 kW with a launch weight of only 3,500 kg. This highly innovative satellite will host three distinct payloads that will strengthen Eutelsat's capability to serving Asia-Pacific markets: a C-band payload, a regular Ku-band payload and a high throughput payload specifically designed for in-flight connectivity along Pacific air corridors.
EUTELSAT 172B is based on the highly reliable Eurostar E3000 platform from Airbus Defence and Space, in its latest EOR (Electric Orbit Raising) evolution. This version relies exclusively on electric propulsion for initial orbit raising and all on-station manoeuvres, with the consequent reduction in mass enabling the satellite to be launched in the Ariane 5 lower position, resulting in lower launch costs.

Цитировать(https://img.novosti-kosmonavtiki.ru/185903.jpg) Eutelsat‏ @Eutelsat_SA  (https://twitter.com/Eutelsat_SA) 2 ч. назад (https://twitter.com/Eutelsat_SA/status/841974008522366978)

#LetsLaunch (https://twitter.com/hashtag/LetsLaunch?src=hash) All-electric high-power EUTELSAT 172B readying for journey to Kourou. Watch out for launch on 25/04 http://ow.ly/meEr309Vuhg  (https://t.co/pvYyd23WVc) #IFC (https://twitter.com/hashtag/IFC?src=hash)
 (https://img.novosti-kosmonavtiki.ru/157143.jpg)

ЦитироватьEUTELSAT 172B satellite: on the road to Kourou

Press Release (http://news.eutelsat.com/pressreleases)   •  Mar 15, 2017 11:02 GMT
 

Спойлер

(https://img.novosti-kosmonavtiki.ru/326099.bin) Photo credit : EUTELSAT 172B artist view (Airbus Defence and Space)

[свернуть]

First European-built high-power all-electric satellite on track for launch on 25 April

Enhanced capacity and innovation for Asia-Pacific markets

Paris, Toulouse, 15 March 2017– The EUTELSAT 172B satellite of Eutelsat Communications (NYSE Euronext Paris: ETL) is in the final stages of preparation at the Airbus Defence and Space facility in Toulouse and will be boarded onto a special flight to French Guiana on 20 March. The 3.5 tonne satellite is scheduled for an Ariane launch on 25 April from the European Spaceport in Kourou.

Спойлер

(https://img.novosti-kosmonavtiki.ru/123419.jpg)Photo credit : Airbus Defence and Space

[свернуть]

EUTELSAT 172B will deliver increased capacity for fast-growing applications that include in-flight and maritime connectivity, cellular backhaul, corporate networks, video distribution and government services. It will be located at 172° East, a key neighbourhood providing exceptional Asia-Pacific reach over land and sea, from Alaska to Australia. Eutelsat's new satellite will replace the EUTELSAT 172A satellite to provide service continuity and improved performance via C and Ku-band payloads connected to a range of footprints.

Setting a new benchmark for in-flight connectivity over the Pacific

EUTELSAT 172B will also feature a new Ku-band multi-beam payload delivering 1.8 Gbps of throughput to serve the world's fastest-growing region for air traffic. The Asia Pacific represents the largest opportunity for in-flight entertainment and connectivity services, with over 8,000 aircraft to be delivered to the region by 2034.

The customised High Throughput payload on EUTELSAT 172B will be a major growth platform for in-flight connectivity, notably Panasonic Avionics Corporation, one of the leading suppliers of in-flight entertainment and connectivity services for commercial airlines. Eleven elliptical spotbeams will enable Panasonic to bridge the West coast of North America to Asia, and down to Australia, supporting rapid air traffic growth in the region and surges in bandwidth use across densely used flight paths.
 

Спойлер

Innovations abound
 
EUTELSAT 172B satellite will be the first satellite to fly new features and capabilities devised by Europe's industry.

[/li]
• The key enabling technology for the inflight connectivity mission is the Multi-Port Amplifier (MPA) that will dynamically distribute power between the 11 spotbeams in direct response to surges in capacity on-board aircraft.
• EUTELSAT 172B will also use innovative deployable robotic arms to orientate and control thrust direction during the approximately four-month ride to geostationary orbit and for station-keeping during its minimum 15 year life.
• The satellite will also fly structural components made with 3D-printing (Additive Manufacturing) techniques that reduce the cost and time required to build spacecraft parts.
  

EUTELSAT 172B is expected to enter service in third quarter 2017, replacing EUTELSAT 172A that will be relocated to another orbital position.


    
About Eutelsat Communications

 Established in 1977, Eutelsat Communications (Euronext Paris: ETL, ISIN code: FR0010221234) is one of the world's leading and most experienced operators of communications satellites. The company provides capacity on 39 satellites to clients that include broadcasters and broadcasting associations, pay-TV operators, video, data and Internet service providers, enterprises and government agencies.
 
Eutelsat's satellites provide ubiquitous coverage of Europe, the Middle East, Africa, Asia-Pacific and the Americas, enabling video, data, broadband and government communications to be established irrespective of a user's location.
 
Headquartered in Paris, with offices and teleports around the globe, Eutelsat represents a workforce of 1,000 men and women from 37 countries who are experts in their fields and work with clients to deliver the highest quality of service.
 
For more about Eutelsat please visit    www.eutelsat.com (http://www.eutelsat.com)

Press
        Vanessa O'Connor    Tel: + 33 1 53 98 37 91        voconnor@eutelsat.com (mailto:voconnor@eutelsat.com)
           Marie-Sophie Ecuer Tel: + 33 1 53 98 37 91        mecuer@eutelsat.com (mailto:mecuer@eutelsat.com)
    
    Investors and analysts
        Joanna Darlington    Tel. : +33 1 53 98 35 30        jdarlington@eutelsat.com (mailto:jdarlington@eutelsat.com)
           Cédric Pugni       Tel. : +33 1 53 98 35 30        cpugni@eutelsat.com (mailto:cpugni@eutelsat.com)

 Attached Files
  PDF document (http://www.mynewsdesk.com/material/pressrelease/1857558/download?resource_type=resource_attached_pdf_document)

[свернуть]

Цитировать(https://img.novosti-kosmonavtiki.ru/67501.jpg) Airbus Space‏ @AirbusSpace  (https://twitter.com/AirbusSpace) 1 ч. назад (https://twitter.com/AirbusSpace/status/841984713837432832)
 
PRESS RELEASE: @AirbusSpace (https://twitter.com/AirbusSpace) ships 1st high-power all-electric #satellite (https://twitter.com/hashtag/satellite?src=hash) EUTELSAT 172B to #Kourou (https://twitter.com/hashtag/Kourou?src=hash) for @Eutelsat_SA (https://twitter.com/Eutelsat_SA) https://airbusdefenceandspace.com/newsroom/news-and-features/airbus-ships-first-high-power-all-electric-eutelsat-172b-satellite-to-kourou-for-eutelsat/ ... (https://t.co/NVN2Hjlz9K)
 (https://img.novosti-kosmonavtiki.ru/157144.jpg)

ЦитироватьAirbus ships first high-power all-electric EUTELSAT 172B satellite to Kourou for Eutelsat
 
 March 15, 2017 - Press release

 All-electric propulsion for orbit-raising and on-station manoeuvers inaugurates significant mass savings on this class of mission

Toulouse, 15/03/2017 – EUTELSAT 172B, the first high power all-electric telecommunications satellite, is now ready for shipment on 20 March from the Airbus satellite assembly facility in Toulouse to Kourou, French Guiana for Eutelsat, one of the world's leading satellite operators. The satellite will be launched into orbit on an Ariane 5 in April, and will provide enhanced telecommunications, in-flight broadband and broadcast services for the Asia-Pacific region.

 We are the first company to demonstrate full electric propulsion for satellites of this size and capacity," said Nicolas Chamussy, Head of Space Systems at Airbus. "With this spacecraft we are clearly setting a new benchmark - enabling powerful and complex satellites to be launched in the most cost efficient manner."

EUTELSAT 172B combines electric power of 13 kW with a launch weight of only 3,500 kg. It hosts three distinct payloads that will strengthen Eutelsat's capabilities across Asia-Pacific markets: a C-band payload, a regular Ku-band payload and a high throughput Ku-band payload designed for in-flight connectivity along Pacific air corridors. The satellite also incorporates other state-of-the-art features, in particular the flexibility to dynamically distribute power between the 11 elliptical beams in the high throughput payload.

"Using electric propulsion for initial orbit raising and all on-station manoeuvres has led to a substantial weight reduction, enabling the satellite to be launched in the Ariane 5 lower position and offering more competitive launch costs," said Arnaud de Rosnay, Head of Telecommunications Satellites at Airbus.

 Underpinning EUTELSAT 172B is Airbus' highly reliable Eurostar E3000 platform in its latest EOR (Electric Orbit Raising) evolution.

Innovative deployable robotic arms will be used to orientate the satellite's electric propulsion thrusters and to control thrust direction and attitude as needed during the different phases of the mission. A proprietary network of ground stations around the world will allow Airbus engineers to control orbit raising operations until the satellite reaches geostationary orbit.

The development of Airbus' Eurostar all electric platform has been supported by ESA and space agencies of European countries, in particular in France by CNES in the framework of the PIA programme (Plan d'Investissements d'Avenir).
 

Спойлер

About Airbus

Airbus is a global leader in aeronautics, space and related services. In 2016, it generated revenues of € 67 billion and employed a workforce of around 134,000. Airbus offers the most comprehensive range of passenger airliners from 100 to more than 600 seats. Airbus is also a European leader providing tanker, combat, transport and mission aircraft, as well as Europe's number one space enterprise and the world's second largest space business. In helicopters, Airbus provides the most efficient civil and military rotorcraft solutions worldwide.

Press contacts:
Ralph Heinrich
+49 (0)171 30 49 751
ralph.heinrich@airbus.com (mailto:ralph.heinrich@airbus.com)
Jeremy Close
+44 (0)7766 536 572
jeremy.close@airbus.com (mailto:jeremy.close@airbus.com)
Guilhem Boltz
+33 (0)6 34 78 14 08
guilhem.g.boltz@airbus.com (mailto:guilhem.g.boltz@airbus.com)
Francisco Lechón
+34 630 196 993
francisco.lechon@airbus.com (mailto:francisco.lechon@airbus.com)
 
Download
Press Release SPACE SYSTEMS 15032017-EN (https://airbusdefenceandspace.com/wp-content/uploads/2017/03/press-release-space-systems-15032017-en.pdf)
Press Release SPACE SYSTEMS 15032017-FR (https://airbusdefenceandspace.com/wp-content/uploads/2017/03/press-release-space-systems-15032017-fr.pdf)
Press Release SPACE SYSTEMS 15032017-DE (https://airbusdefenceandspace.com/wp-content/uploads/2017/03/press-release-space-systems-15032017-de.pdf)
Press Release SPACE SYSTEMS 15032017-ES (https://airbusdefenceandspace.com/wp-content/uploads/2017/03/press-release-space-systems-15032017-es.pdf)

[свернуть]

Цитировать(https://img.novosti-kosmonavtiki.ru/185973.jpg) Caleb Henry‏ @CHenry_SN  (https://twitter.com/CHenry_SN) 28 мин. назад (https://twitter.com/CHenry_SN/status/842036946675343361)
 
SES-15 arrived in Kourou for launch today. Eutelsat-172B shipping on March 20. Boeing built SES-15, Airbus built Eutelsat-172B. #Satellite (https://twitter.com/hashtag/Satellite?src=hash)

Цитировать (https://img.novosti-kosmonavtiki.ru/185903.jpg) Eutelsat‏ @Eutelsat_SA  (https://twitter.com/Eutelsat_SA) 11 ч. назад (https://twitter.com/Eutelsat_SA/status/843886472390463488)

#LetsLaunch (https://twitter.com/hashtag/LetsLaunch?src=hash) EUTELSAT 172B all-electric #satellite (https://twitter.com/hashtag/satellite?src=hash) now heading to French Guiana! Watch this space to follow its journey to Kourou #VA237 (https://twitter.com/hashtag/VA237?src=hash) (https://img.novosti-kosmonavtiki.ru/125513.png)
(https://img.novosti-kosmonavtiki.ru/157562.jpg)

Цитировать...
ViaSat-2 – Shattering the Coverage or Capacity Myth

With a planned launch in the first quarter of calendar 2017, ViaSat-2 is designed to combine both deep, high-capacity bandwidth and wide coverage, and flexibility to move bandwidth to where demand requires it. Challenging the conventional wisdom that our system had focused only on total capacity at the expense of wide area coverage, ViaSat-2 is designed to double the bandwidth economics advantage of ViaSat-1, double the throughput, and provide seven times the coverage.
 
Providing Access to the Best Available Network Worldwide

ViaSat-2 will be our first big step toward spreading high-capacity coverage worldwide for fixed broadband and mobility services for aviation and maritime. We already operate a global Ku-band network for thousands of mobile customers, including government and commercial aircraft as well as sea-going vessels.

Working with partners, we're now overlaying high-capacity coverage on our network in a similar manner to the build-out of 4G LTE mobile wireless on top of previous 2G and 3G services. As part of the plan, ViaSat-2 will include coverage bridging the North Atlantic, adding contiguous high-capacity coverage over all of North America, Europe, and the Mediterranean basin together with our partner Eutelsat. We invite you to become a partner in your part of the world.

To enable customers to seamlessly gain access to the "best available network" as they roam, we're now offering the first combination Ku/Ka terminals.
...

Цитировать (https://img.novosti-kosmonavtiki.ru/29242.jpg) DutchSpace‏ @DutchSpace (https://twitter.com/DutchSpace) 4 ч. назад (https://twitter.com/DutchSpace/status/845199081857179648)

Current state of play(TBC): #VA236 (https://twitter.com/hashtag/VA236?src=hash) NET 28th #VS17 (https://twitter.com/hashtag/VS17?src=hash) NET probably 11/04 launcher at CSG #VA237 (https://twitter.com/hashtag/VA237?src=hash) impact unknown but #Ariane5 (https://twitter.com/hashtag/Ariane5?src=hash) EPC already at #CSG (https://twitter.com/hashtag/CSG?src=hash)

Цитировать (https://img.novosti-kosmonavtiki.ru/29242.jpg) DutchSpace‏ @DutchSpace (https://twitter.com/DutchSpace) 20 мин. назад (https://twitter.com/DutchSpace/status/846299699917344768)

There are reports(TBC) that Eutelsat 172B is currently stuck at #Cayenne (https://twitter.com/hashtag/Cayenne?src=hash) due to the strikes #CSG (https://twitter.com/hashtag/CSG?src=hash) #Kourou (https://twitter.com/hashtag/Kourou?src=hash) #VA237 (https://twitter.com/hashtag/VA237?src=hash)
(https://img.novosti-kosmonavtiki.ru/157312.jpg)

Цитировать (https://img.novosti-kosmonavtiki.ru/29242.jpg) DutchSpace‏ @DutchSpace (https://twitter.com/DutchSpace) 3 ч. назад (https://twitter.com/DutchSpace/status/846659427272921089)

Update from #Kourou (https://twitter.com/hashtag/Kourou?src=hash) : still no flights to/from Paris to Cayenne, #CSG (https://twitter.com/hashtag/CSG?src=hash) still blocked #VA236 (https://twitter.com/hashtag/VA236?src=hash) delayed #V17 (https://twitter.com/hashtag/V17?src=hash) impacted #VA237 (https://twitter.com/hashtag/VA237?src=hash) S/C stuck at airport

Цитировать (https://img.novosti-kosmonavtiki.ru/186003.jpg) Vanessa O'Connor‏ @VanessaEutelsat (https://twitter.com/VanessaEutelsat) 4 ч. назад (https://twitter.com/VanessaEutelsat/status/846652218317164544)

EUTELSAT 172B sat currently in controlled cleanroom environment in Antonov aircraft in Cayenne. @Eutelsat (https://twitter.com/eutelsat) _SA @AirbusSpace (https://twitter.com/AirbusSpace) monitoring 24/7

Цитировать (https://img.novosti-kosmonavtiki.ru/29242.jpg)  DutchSpace‏ @DutchSpace (https://twitter.com/DutchSpace)  45 мин.45 минут назад (https://twitter.com/DutchSpace/status/847066751909154816)
Update on @Eutelsat_SA (https://twitter.com/Eutelsat_SA) Eutelsat 172B planned for #VA237 (https://twitter.com/hashtag/VA237?src=hash) has flow back to @AirbusSpace (https://twitter.com/AirbusSpace) Toulouse after being stuck in #Cayenne (https://twitter.com/hashtag/Cayenne?src=hash) HT @urskaelin (https://twitter.com/urskaelin)
 (https://img.novosti-kosmonavtiki.ru/157609.jpg)
 
Interesting, the Antonov that had Eutelsat 172B inside at #Cayenne (https://twitter.com/hashtag/Cayenne?src=hash) has left yesterday,no word on where the S/C is currently... #VA237 (https://twitter.com/hashtag/VA237?src=hash) #CSG (https://twitter.com/hashtag/CSG?src=hash)
 (https://img.novosti-kosmonavtiki.ru/157621.jpg)

ЦитироватьSalo пишет:
the Antonov that had Eutelsat 172B inside at # Cayenne has left yesterday

ЦитироватьSalo пишет:
back to @ AirbusSpace Toulouse

ЦитироватьDutchSpace‏ (https://twitter.com/DutchSpace/status/847054588884672512)

It landed in Suriname, Zanderij, PBM

ЦитироватьSalo пишет:
Стало понятно, почему он сначала полетел на северо-запад.  ;)

Цитировать (https://img.novosti-kosmonavtiki.ru/185903.jpg) Eutelsat‏ @Eutelsat_SA (https://twitter.com/Eutelsat_SA) 6 ч назад (https://twitter.com/Eutelsat_SA/status/847314416039112705)

#VA237 (https://twitter.com/hashtag/VA237?src=hash) update: EUTELSAT 172B satellite back in Toulouse at @AirbusSpace (https://twitter.com/AirbusSpace) facilities

Цитировать (https://img.novosti-kosmonavtiki.ru/185988.jpg) Peter B. de Selding‏ @pbdes (https://twitter.com/pbdes) 5 ч.5 часов назад (https://twitter.com/pbdes/status/848797137965989889)
Europe's spaceport & much of rest of Fr Guiana remains closed after breakdown of negs between local pop & govt. Two weeks & counting...
 
  (https://img.novosti-kosmonavtiki.ru/185988.jpg)  Peter B. de Selding‏ @pbdes (https://twitter.com/pbdes)  5 ч.5 часов назад (https://twitter.com/pbdes/status/848798546849562624)  
Europe's spaceport2/ Arianespace had forecast no launches in May, so bottleneck from 3-wk shutdown from strikes could be absorbed by June.

ЦитироватьEutelsat satellite returned to factory as French Guiana unrest continues
by Caleb Henry (http://spacenews.com/author/caleb-henry/) — April 3, 2017
  (https://img.novosti-kosmonavtiki.ru/155700.png)
Eutelsat-172b, which left Toulouse, France, March 20 on an Antonov AR-124 transport plane for Cayenne, French Guiana, was returned to Airbus' Toulouse factory March 30. Credit: Airbus Defence and Space  
 
This article was updated April 3, 2017 at 2:15 p.m. MT
COLORADO SPRINGS — Protests roiling the South American home of Europe's primary spaceport prompted Airbus Defence and Space to send Europe's first high-power, all-electric satellite back to France until Arianespace resumes launching.
Airbus flew the Eutelsat-172b satellite to Cayenne, French Guiana last last month in anticipation of its upcoming launch.
But Arianespace has suspended launches from the Guiana Space Centre as labor strikes and civil protests have spread throughout the French overseas department, blocking roads and disrupting normal commerce.
"We decided with Airbus that under the circumstances it was best to bring [Eutelsat-172b] back to Toulouse," Eutelsat spokeswoman Vanessa O'Connor told SpaceNews April 3. "It is now stored at Airbus and we are waiting for a new launch date from Arianespace."
Airbus Defence and Space spokesperson Ralph Heinrich said Eutelsat-172b arrived back in Toulouse, France, March 30.
Protests that began in late March over working and living conditions prevented Arianespace from moving its Ariane 5 rocket to the launch zone (http://spacenews.com/kourou-labor-discord-further-postpones-ariane-5-launch/) in advance of a March 21 launch of Brazil's SGDC satellite and KT Corporation's Koreasat-7 satellite. After calling two 24-hour delays, Arianespace stood down March 23 without setting a new date for flight VA236.
Eutelsat-172b is next in line for an Ariane 5 launch.
CNES's Joel Barre declined to comment on the state of affairs at the spaceport.
According to France 24, activists in French Guiana are demanding 2.5 billion euros ($2.7 billion) from France, having rejected a 1.085 billion-euro aid package over the weekend. French Guiana has a population of about 250,000.
Unrest in the French territory is now compounding launch delays for Arianespace, which has 12 launches to complete this year.
For Eutelsat, the delays are likely to push back the expected in service date for Eutelsat-172b, a satellite the operator ordered ahead of its original schedule thanks to the backing of Panasonic Avionics as an anchor customer for in-flight connectivity in the Asia Pacific. Eutelsat-172b is a tri-band satellite the operator ordered in June 2014 as an early follow on for Eutelsat-172A.
As an all-electric satellite, O'Connor said Eutelsat-172b is expected to require four months of orbit raising to get from its drop-off point to its geostationary orbit some 36,000 kilometers above the equator.
Arianespace, however, could trim Eutelsat-172b's transit time by delivering an exemplary launch.
Eutelsat's first all-electric satellite, the Boeing-built Eutelsat 115 West B, entered service a month early thanks to an extremely accurate SpaceX Falcon 9 launch.

Цитировать (https://img.novosti-kosmonavtiki.ru/185973.jpg) Caleb Henry‏ @CHenry_SN (https://twitter.com/CHenry_SN) 2 ч. назад (https://twitter.com/CHenry_SN/status/849305210182938624)

Boeing "evacuated" employees from French Guiana that were there for ViaSat-2 launch, now also delayed.

ЦитироватьПротестующие требуют, чтобы правительство Франции выплатило территории €2,5 млрд

Подробнее на ТАСС:
http://tass.ru/mezhdunarodnaya-panorama/4154130

Цитировать (https://img.novosti-kosmonavtiki.ru/185988.jpg) Peter B. de Selding‏ @pbdes (https://twitter.com/pbdes) 9 ч. назад (https://twitter.com/pbdes/status/849284605207359489)

Demonstrator to space center chief Faivre: Space activities will remain blocked as long as our (negotiations) with the Fr govt are blocked.

 (https://img.novosti-kosmonavtiki.ru/185988.jpg) Peter B. de Selding‏ @pbdes (https://twitter.com/pbdes) 9 ч. назад (https://twitter.com/pbdes/status/849286143258619905)

2d demonstrator to Faivre: As long as our demands (~ EUR 3B) arent met, your rockets wont launch.

Цитировать4 ч. назад (https://twitter.com/GuyaneActu/status/849356337540726784)

Pendant ce temps ... La police anti-émeute guyanaise à l'entrée du Centre spatial guyanais. ( jody amiet / AFP )
(https://img.novosti-kosmonavtiki.ru/157688.jpg)

ЦитироватьВ том же время ... гайанский ОМОН при входе Гвианского космического центра. (Джоди Амье / AFP)

ЦитироватьGuiana Space Centre Director meets with protesters as demonstrations continue            

Цитировать (https://img.novosti-kosmonavtiki.ru/29242.jpg) DutchSpace‏ @DutchSpace (https://twitter.com/DutchSpace) 20 мин. назад (https://twitter.com/DutchSpace/status/850027293099655168)

Update from #kourou (https://twitter.com/hashtag/kourou?src=hash) : situation not improving, #Cayenne (https://twitter.com/hashtag/Cayenne?src=hash) airport fire department on strike #VA236 (https://twitter.com/hashtag/VA236?src=hash) #CSG (https://twitter.com/hashtag/CSG?src=hash)

Цитировать (https://img.novosti-kosmonavtiki.ru/185988.jpg) Peter B. de Selding‏ @pbdes (https://twitter.com/pbdes) 14 ч. назад (https://twitter.com/pbdes/status/852842857559990272)

Europe's spaceport: Given Guiana strike, Arianespace return to ops before early May looks unlikely, & even that is optimistic at this stage.

Цитировать Куру: Арианспейс в тупике

ЦитироватьArianespace interpelle les élus de Guyane sur les conséquences du mouvement social

La1ère.fr (avec AFP) | Publié le 14/04/2017 à 16:00, mis à jour le 14/04/2017 à 16:01
 
 Dans une lettre adressée aux quatre parlementaires de Guyane, le PDG d'Arianespace met en garde sur les conséquences du mouvement social. Les blocages ont interrompu "trois campagnes de lancement" de la fusée Ariane, avec "plusieurs millions d'euros de surcoûts pour Arianespace".
 
 (https://img.novosti-kosmonavtiki.ru/120811.jpg)
© Arianespace Décollage de la fusée Ariane 5
 
 Les blocages en Guyane ont interrompu "trois campagnes de lancement" de la fusée Ariane, avec "plusieurs millions d'euros de surcoûts pour Arianespace et les industriels du centre spatial", a averti le PDG d'Arianespace dans une lettre à plusieurs élus guyanais, dont l'AFP a eu copie vendredi.

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Les barrages ouverts sauf au centre spatial
Si le collectif "Pou la Gwiyann dékolé", qui pilote le mouvement social initié depuis près d'un mois, a annoncé jeudi soir l'ouverture de la plupart des barrages pour le week-end de Pâques, il a prévenu que le barrage du rond-point proche du centre spatial guyanais (CSG) restera maintenu. Le centre spatial, vitrine économique du territoire, est considéré par le collectif comme le symbole des inégalités persistantes dans ce territoire d'outre-mer.

 Trois campagnes de lancement interrompues
Les blocages en cours "ont interrompu trois campagnes de lancement pour cinq clients différents: le gouvernement brésilien et les opérateurs commerciaux ktsat (Corée), SES (Luxembourg), Viasat (Etats-Unis), Eutelsat (France)", a fait valoir Stéphane Israël, dans sa lettre adressée le 12 avril notamment aux quatre parlementaires de Guyane.
 
 "Deux lanceurs différents - Ariane et Soyouz - sont impliqués dans ces campagnes, ainsi que trois constructeurs de satellites : Thales Alenia Space, Airbus, Boeing", a-t-il aussi observé. Les blocages ont "d'ores et déjà repoussé de plus d'un mois le lancement prévu le 21 mars dernier pour le Brésil et la Corée. Ce mois perdu peut se chiffrer à plusieurs millions d'euros de surcoûts pour Arianespace et les industriels du CSG", a poursuivi Stéphane Israël. (Regardez ci-dessous le reportage de Guyane 1ère sur les difficultés d'Arianespace).
 
 https://www.youtube.com/watch?v=2YS-1Gp7W-g (https://www.youtube.com/watch?v=2YS-1Gp7W-g)
 Arianespace dans l'impasse
 
 Arianespace en souffrance
Selon lui, "l'image d'Arianespace et la disponibilité de ses services de lancement peuvent souffrir de cette situation". "Si le blocage devait persister, la réalisation de 12 lancements en 2017 serait menacée, ce qui aurait des conséquences financières lourdes", a mis en garde le PDG d'Arianespace, dans son courrier également adressé à Rodolphe Alexandre, président de la Collectivité Territoriale de Guyane. "La situation actuelle fragilise Arianespace, dans un contexte où la compétition est plus vive que jamais", a-t-il encore fait valoir.
 
 Stéphane Israël a mis en avant que "1.700 salariés" travaillent sur la base pour Arianespace, le Cnes, et 36 entreprises regroupées au sein de l'Union des Employeurs de la Base Spatiale (UEBS). Soulignant que "notre activité génère 9.000 emplois au total" et "représente 40% de la masse salariale du secteur privé en Guyane", il a estimé que "ce qui est en jeu, c'est tout simplement la pérennité de ces emplois en Guyane".
 
 "Comme toute activité (...) le lien entre la base spatiale et les territoires qui l'accueillent peut être renforcé, mais il ne fait aucun doute que le spatial constitue un poumon économique pour la Guyane", a-t-il insisté.

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Europe spaceport's long shutdown a threat to Arianespace schedule

April 17, 2017

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(https://forum.novosti-kosmonavtiki.ru/forum/file/70167)
Multiple demonstrations in French Guiana included this one, led by robed lawyers, near the Guiana Space Center spaceport.
Credit: La Voix du Nord

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PARIS — The continued shutdown of Europe's spaceport threatens to scuttle launch-service provider Arianespace's plans for 2017 — a year when it hoped to distinguish itself fr om its competitors.

It is also a problem for those commercial customers whose planned launch dates in March and April are now scrapped, including Eutelsat and its 172B satellite customers, Panasonic Avionics; ViaSat Inc.'s business-crucial ViaSat-2; and SES's SES-15.

As of April 17, it was unclear whether the protest movement's decision to allow shopping over the long Easter weekend by opening roadblocks that have choked economic activity in French Guiana signaled an end to the protests, or whether circulation would be paralyzed again on April 18.

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Roadblocks lifted for Easter — except for spaceport

In an indication of how the Guiana Space Center has come to symbolize the French state, the protesters maintained a roadblock of the spaceport access road while opening the others to traffic for the weekend.

The grounding of Europe's launch vehicles compounds an already stressed global commercial launch sector. Launches of Russia's Proton rocket have been suspended since June for technical defects, and a late-May return to flight has not been confirmed.

SpaceX's Falcon 9, recovering fr om a September failure, is juggling a crowded manifest. Whether it can ramp operations to its long-promised twice-per-month cadence is uncertain. China's Long March rocket family, in robust health, remains a minor player on the market because of a U.S. ban on launching U.S.-built satellite parts from China.

The Guiana Space Center, on the northeast coast of South America, has seen brief labor-related shutdowns before. Local law enforcement typically does not intervene, out of concern for creating martyrs and enflaming situations that end quietly after negotiations. This has worked in the past.

A broad-based protest, but is support eroding?

But not this time. A work stoppage March 20 at the spaceport, which prevented the Ariane 5 rocket from being rolled out to its launch pad for a planned March 21 launch, was followed by a broad movement in French Guiana protesting high crime rates, illegal immigration and the general degradation of conditions in the French overseas department.

The protest has been led not by a labor union but by a diverse collective that sometimes appears to speak with several voices. Local politicians, surprised by the movement's power, have struggled to keep up with it.

After initial days of tacit support for the movement, businesses that have been unable to function for weeks have begun to call for the movement to end. Whether local law-enforcement authorities will use these signs of strike fatigue to forcibly remove the trucks blocking the roadways was unclear.

A visit by French government ministers to negotiate an end to the crisis proved fruitless. The ministers represent a government that will leave office in May after elections and could not meet the protesters' demand of a 3-billion-euro ($3.2-billion) economic aid package.

French President Francois Hollande, who is not running for re-election and whose relevance to French politics is declining by the day, offered to meet a delegation from French Guiana in Paris. The offer was refused as too vague.

The protesters received support from the president of the European Commission, Jean-Claude Juncker, who said in a speech that "all my sympathy is on their side, because in Guiana, as elsewh ere, we have committed the error of inattention. And Guiana is not the only territory beyond continental Europe that finds itself in this situation. Many others, by the way, don't understand that these regions are fully part of Europe."

One French space industry official with long experience in French Guiana, while expressing irritation at Juncker's statement — the European Commission's negligible support for the spaceport is a sore point between Brussels and Paris — said it nonetheless illustrated the problem.

"There has been this idea that being in a French overseas department, the Guianese can hope for a lifestyle identical to that of metropolitan France. But that's impossible. This is South America — Brazil on one side, Suriname on the other, and an uncontrollable border.

"What's needed now is a political solution that accepts this reality while doing what we can to improve the life of the local population," this official said.

A modern spaceport in the Third World: What could go wrong?

A flourishing space-launch facility in a Third World setting has become a rallying cry for some of the activists, who have used the spaceport's strategic importance to the French government as a means of pressure.

Protesters conducted an all-night sit-in in a space center conference room after its director, Didier Faivre, admitted he could do nothing more than promise he would convey their message to CNES headquarters.

Protestors apparently hoped the power of the Guiana Space Center Director was such that he could pressure the French government to meet the demands for increased aid.

During this period, Arianespace and CNES have had zero leverage, admitting privately that they have no idea how long the paralysis will last.

CNES President Jean-Yves Le Gall, a former chief executive of Arianespace, told an April 4 session at the National Space Symposium in Colorado that he was "very confident that we will resume with the launches in the coming days."

Industry officials said that it would take CNES and Arianespace 10 days to prepare for a launch once the roadblock have been cleared and transit to and from the spaceport, and to French Guiana's airport, returns to normal.

Arianespace had planned six launch campaigns between January and April, and a record 12 launches for the full year: seven heavy-lift Ariane 5 rockets, three medium-lift Europeanized Russian Soyuz vehicles and two Vega small-satellite launch campaigns.

That schedule assumed a launch-free month of May. But with late-March and April launches of two Ariane 5 rockets and a Soyuz — all carrying commercial telecommunications satellites — now out of reach, May will be a catch-up month.

Even this scenario assumes the demonstrators accept the loss of face that would follow any decision to end their movement without a further government concessions beyond the 1 billion euros already promised.

Arianespace's appeal to French Guiana parliamentarians

Arianespace Chief Executive Stephane Israel on April 12 wrote the four French parliament members from French Guiana, reminding them that Arianespace's financial health is good for the territory.

"The loss of a month of activity is estimated to cost millions of euros in additional charges for Arianespace and the industry working at [the Guiana Space Center], and the customers are exposed [to costs] as well," Israel said.

"If the roadblocks continue, plans to conduct 12 launches in 2017 will be threatened, which would have heavy financial consequences for Arianespace and for the thousands of employees working at or for the spaceport.

Israel said 9,000 jobs in French Guiana are directly or indirectly supported by the space-launch activity, representing 40 percent of French Guiana's entire private-sector work force.

Arianespace did not immediately respond to requests for clarification about the "millions of euros" in additional charges — whether the revenue in question was lost or just deferred, and whether Arianespace and its contractors have insurance policies in place to cover events of this nature.

Given the state of the global launch market, Arianespace's customers for the most part are unable to take their business elsewh ere. They're just as stuck as the Ariane 5 rocket blocked in its final assembly building since March 20.

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Peter B. de Selding

Цитировать (https://img.novosti-kosmonavtiki.ru/185988.jpg) Peter B. de Selding‏ @pbdes (https://twitter.com/pbdes) 6 ч. назад (https://twitter.com/pbdes/status/854219831473733632)

Euro spaceport 1: Roadblocks back up in Fr Guiana; movement offers new face-saving deal of little cost to govt. Strike could end this week.

Цитировать (https://img.novosti-kosmonavtiki.ru/29242.jpg) DutchSpace‏ @DutchSpace (https://twitter.com/DutchSpace) 9 ч. назад (https://twitter.com/DutchSpace/status/854976088874897408)

Update from #kourou (https://twitter.com/hashtag/kourou?src=hash) agreement might be close, meeting today, possible end in sight #VA236 (https://twitter.com/hashtag/VA236?src=hash) #CSG (https://twitter.com/hashtag/CSG?src=hash)

Цитировать DutchSpace‏ @DutchSpace (https://twitter.com/DutchSpace)
Update from #kourou (https://twitter.com/hashtag/kourou?src=hash) agreement signed, way foward being planned, #VA236 (https://twitter.com/hashtag/VA236?src=hash) launch possible early May #CSG (https://twitter.com/hashtag/CSG?src=hash)

ЦитироватьКосмодром Куру во Французской Гвиане в понедельник возобновит работу
МОСКВА, 23 апреля. /ТАСС/. Космодром Куру во Французской Гвиане, доступ к которому был заблокирован (http://tass.ru/kosmos/4184508) протестующими месяц назад, в понедельник возобновит работу. Об этом в субботу сообщило агентство AFP (https://www.afp.com/) со ссылкой на администрацию космодрома.
"Работа будет возобновлена утром в понедельник", - приводит агентство слова из ее заявления. Сообщается, что три запуска ракет, ранее отложенных из-за массовых выступлений в департаменте Франции, будут назначены на другие даты. По информации агентства, они будут проведены, предположительно, в мае и июне.
Ранее сообщалось, что правительство Франции приняло решение о выделении Французской Гвиане дополнительных средств в размере €2,1 млрд, которые пойдут на преодоление экономических и социальных проблем территории, а также на обеспечение должного уровня безопасности.

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Всеобщая забастовка во Французской Гвиане была объявлена в середине марта по призыву Союза гвианских трудящихся на почве недовольства местного населения условиями труда и жизни на фоне общего кризиса региональной экономики. В заморском департаменте Франции полностью прекратили работу школы, вузы, госучреждения, портовые предприятия, а также многие коммерческие заведения. Помимо этого, на автодорогах забастовщики начали выставлять многочисленные блокпосты, что затруднило движение автотранспорта. Протестующие требовали улучшения местной инфраструктуры, совершенствования системы здравоохранения и образования, а также жаловались на проблемы с безопасностью.

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ЦитироватьCorporate (http://www.arianespace.com/press-releases/?taxonomy%5Bpress-release-category%5D=corporate) April 26, 2017
 
Arianespace announces dates for Flights VS17 and VA237; confirms its goal of 12 launches in 2017 from French Guiana

After having successfully carried out three launches during the first quarter of 2017 with its family of launch vehicles, Ariane, Soyuz and Vega, and scheduled the VA236 Ariane 5 launch on May 4, Arianespace has now announced the dates for the next two missions:

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• VS17, May 18, 2017: a Soyuz launcher will orbit SES-15 for the operator SES.
• VA237, June 1, 2017: an Ariane 5 ECA launcher will orbit ViaSat-2 and E172B for the operators ViaSat and Eutelsat.
  

The planning for the six subsequent missions remains unchanged.

Arianespace confirms its objective of carrying out 12 launches in 2017.

Цитировать (https://img.novosti-kosmonavtiki.ru/29242.jpg) DutchSpace‏ @DutchSpace (https://twitter.com/DutchSpace) 31 мин. назад (https://twitter.com/DutchSpace/status/857938374635794432)

This S/C likes airmiles, first flying back to Europe after being stuck in #Cayenne (https://twitter.com/hashtag/Cayenne?src=hash) due to strikes, it's back at #CSG (https://twitter.com/hashtag/CSG?src=hash) Eutelsat 172B #VA237 (https://twitter.com/hashtag/VA237?src=hash)
(https://img.novosti-kosmonavtiki.ru/158261.jpg)

Цитировать (https://img.novosti-kosmonavtiki.ru/29242.jpg) DutchSpace‏ @DutchSpace (https://twitter.com/DutchSpace) 15 мин назад (https://twitter.com/DutchSpace/status/861580275326779393)

Nice to finally see @Eutelsat_SA (https://twitter.com/Eutelsat_SA) 172B inside S5C at #CSG (https://twitter.com/hashtag/CSG?src=hash) for launch prep on #Ariane5 (https://twitter.com/hashtag/Ariane5?src=hash) #VA237 (https://twitter.com/hashtag/VA237?src=hash)
(https://img.novosti-kosmonavtiki.ru/158876.jpg)

Цитировать (https://img.novosti-kosmonavtiki.ru/185903.jpg) Eutelsat‏ @Eutelsat_SA (https://twitter.com/Eutelsat_SA) 5 мая (https://twitter.com/Eutelsat_SA/status/860516292649996288)

#LetsLaunch (https://twitter.com/hashtag/LetsLaunch?src=hash) (https://img.novosti-kosmonavtiki.ru/125535.png) EUTELSAT 172B entering prep stage in Kourou before launch on June 1 with @Arianespace (https://twitter.com/Arianespace) #VA237 (https://twitter.com/hashtag/VA237?src=hash) (https://img.novosti-kosmonavtiki.ru/125513.png) #Ariane5 (https://twitter.com/hashtag/Ariane5?src=hash)
(https://img.novosti-kosmonavtiki.ru/158206.jpg)

Цитировать (https://img.novosti-kosmonavtiki.ru/185903.jpg) Eutelsat‏ @Eutelsat_SA (https://twitter.com/Eutelsat_SA) 7 мая (https://twitter.com/Eutelsat_SA/status/861211663529369600)

#LetsLaunch (https://twitter.com/hashtag/LetsLaunch?src=hash) Proud to chalk up new firsts in space! #innovation (https://twitter.com/hashtag/innovation?src=hash) @AirbusSpace (https://twitter.com/AirbusSpace) @Arianespace (https://twitter.com/Arianespace) #VA237 (https://twitter.com/hashtag/VA237?src=hash)
(https://img.novosti-kosmonavtiki.ru/158641.jpg)

Цитировать (https://img.novosti-kosmonavtiki.ru/185546.png) ViaSat Inc.‏ @ViaSatInc (https://twitter.com/ViaSatInc) 15 ч назад (https://twitter.com/ViaSatInc/status/861674556540334080)

Follow ViaSat-2's journey from LAX to French Guiana as it preps for the June 1 launch. http://bit.ly/2pod8jl  (https://t.co/AixCVPBrhU) #ConnectUp (https://twitter.com/hashtag/ConnectUp?src=hash) #ViaSat2 (https://twitter.com/hashtag/ViaSat2?src=hash) #Launch (https://twitter.com/hashtag/Launch?src=hash)
(https://img.novosti-kosmonavtiki.ru/158982.jpg)
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(https://www.viasat.com/sites/default/files/media/images/gallery/picture1_1.png)
Image: An AN-124 carrying the ViaSat-2 satellite from Los Angeles International Airport to French Guiana for the scheduled June 1 launch.

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ViaSat-2: Getting Ready for Launch

A question the ViaSat program team is often asked is: what happens leading up to a satellite launch? Let's take you through the ViaSat-2 journey – now that we've shipped the satellite from the Boeing Satellite Systems International factory in El Segundo, Calif., to the launch site in Kourou, French Guiana. As you'll learn, a lot happens in the weeks leading up to its ride into space.

Shipping

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As you can imagine, it's not easy to move a satellite that weighs over 9,000 pounds and is roughly the size of a school bus; especially when the launch base is in a rather remote location, such as French Guiana.

So, in order to transport such a large piece of equipment over such a great distance, you need a really big container and an even larger airplane. ViaSat-2 was so large that Boeing had to build a new container to accommodate the satellite.  The container is designed to physically protect the satellite from damage, but also to keep the environment clean and the temperature and humidity within specified ranges.  These are not just large crates, but very sophisticated environmental control chambers. For ViaSat-2, we chartered the largest available cargo plane in the world, the Ukrainian-built and Russian-operated Antonov AN-124.  The satellite containers are carefully designed to fit in the cargo bay of an AN-124.

One thing to note is when we ship a satellite to the launch facility, we don't just ship the satellite, we also ship test equipment, handling hardware, fueling gear, and office equipment, among other items. Loading the container on an AN-124 takes about 4-6 hours, as does unloading it. The trip from the satellite factory to a launch base is about a 2-3 day trip. For ViaSat-2, the AN-124 flew from Los Angeles (LAX) to Houston and then direct to Cayenne, French Guiana. ViaSat-2 departed LAX on March 16, 2017.

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Launch Campaign

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A typical launch campaign usually spans about 30 days from satellite arrival to launch. The ViaSat-2 launch campaign is scheduled for 39 days from satellite arrival to launch, as Arianespace has two other launches scheduled at the Guiana Space Center (known by its French acronym as CSG) between the time ViaSat-2 arrives and its official launch date.

The other major phases of a typical launch campaign are:
 

[/li]
• Unpack: This is unpacking the satellite, as well as the other test and fueling equipment we shipped.
• Test: Once the satellite is unpacked, we run the satellite through a series of tests to make sure there is no latent damage and that everything still works as intended. It's very important to verify that we have a healthy satellite prior to fueling it.  Once we fuel it, we cannot easily offload the fuel and decontaminate the satellite propulsion system.
  

Fuel: Once we've verified the satellite is completely healthy, we will load the chemical fuel onboard.  ViaSat-2 has a hybrid propulsion system, which means it is using traditional chemical propulsion as well as electric propulsion.  The electric propulsion burns xenon gas, which is an inert gas.  Because it's inert, the xenon is loaded at the factory before shipment to the launch site.  So, at the launch base, we have to load hydrazine fuel and nitrogen tetroxide oxidizer. Both of these chemicals are highly toxic and hazardous, so on fueling days, the facility is cleared of all but essential personnel.

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Mate to Launch Vehicle

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Up to this point in the launch campaign, we've been working on our own, and apart from some blackout days due to other hazardous operations or other launches, we've been pretty much free to work on our own schedule.  That changes as soon as combined operations start.  Combined operations begin when we mate the satellite to the payload adapter (the payload adapter is the structure that holds the satellite to the rocket).  From this point on, the satellite team and the launch vehicle teams are integrated and all subject to a joint schedule.

For ViaSat-2, combined operations will start approximately six (6) days before launch when the satellite goes onto the payload adapter and will end upon conclusion of the launch.  From this point on, there will be a very carefully scripted sequence of events that will see the satellite joined to the adapter, then mated to the Sylda (the dual payload carrying structure), encapsulated within the payload fairing, mated to the rocket, roll-out to the launch pad, launch rehearsal and finally, launch.

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Launch

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Launch days are inevitably long days. The initial call to stations is usually 10-12 hours ahead of the scheduled liftoff time. During this time, we'll follow a very carefully developed script and sequence of events for both the rocket and the satellite. We'll power-up the satellite and perform some health checks to ensure the satellite is still healthy. The integrated countdown sequence will progress and we'll receive weather updates and finally, during the terminal count, we'll give a final go or no-go for launch. For ViaSat-2, the last point at which we can abort the launch is 7 seconds prior to ignition of the first stage core engine.

The ViaSat-2 mission will take less than 30 minutes from liftoff to separation. Once the satellite separates from the rocket, the next major event is acquisition, which is the point at which the satellite first communicates with, and accepts, commands from a ground station. At this point, we consider the mission to be successful.

(https://www.viasat.com/sites/default/files/styles/product_gallery_image/public/media/images/gallery/picture2.png?itok=KYoD3CCB) (https://www.viasat.com/sites/default/files/media/images/gallery/picture2.png)(https://www.viasat.com/sites/default/files/styles/product_gallery_image/public/media/images/gallery/picture3.png?itok=OL1RUj_D) (https://www.viasat.com/sites/default/files/media/images/gallery/picture3.png)(https://www.viasat.com/sites/default/files/styles/product_gallery_image/public/media/images/gallery/picture4.png?itok=YcaryE5h) (https://www.viasat.com/sites/default/files/media/images/gallery/picture4.png)(https://www.viasat.com/sites/default/files/styles/product_gallery_image/public/media/images/gallery/picture5.png?itok=G-2WPOzm) (https://www.viasat.com/sites/default/files/media/images/gallery/picture5.png)

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Цитировать (https://img.novosti-kosmonavtiki.ru/29242.jpg) DutchSpace‏ @DutchSpace (https://twitter.com/DutchSpace) 15 мин. назад (https://twitter.com/DutchSpace/status/864409095276834816)

Some #CSG (https://twitter.com/hashtag/CSG?src=hash) updates: #VA237 (https://twitter.com/hashtag/VA237?src=hash) planned for 01/06/2017 at 20:45 local #VA238 (https://twitter.com/hashtag/VA238?src=hash) planned for 28/06/2017 at 18:20 local

Цитировать (https://img.novosti-kosmonavtiki.ru/185390.png) Arianespace‏ @Arianespace (https://twitter.com/Arianespace) 40 мин. назад (https://twitter.com/Arianespace/status/864933334702489600)

Launch preparations with #Soyuz (https://twitter.com/hashtag/Soyuz?src=hash), #Ariane5 (https://twitter.com/hashtag/Ariane5?src=hash) and #Vega (https://twitter.com/hashtag/Vega?src=hash) keep @Arianespace (https://twitter.com/Arianespace) on track for 12 missions in 2017: http://bit.ly/2rrSWiz  (https://t.co/8g2ZZkxkIW)

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ЦитироватьFeature story (http://www.arianespace.com/corporate-news/?taxonomy%5Bcorporate-news-category%5D=feature-story) | May 17, 2017

Launch preparations with Soyuz, Ariane 5 and Vega keep Arianespace on track for 12 missions in 2017

Arianespace's objective of performing 12 launches in 2017 is backed by a high level of activity at the Spaceport in French Guiana, where mission preparations, payload checkout and launch vehicle hardware are in process for upcoming flights with Soyuz, Ariane 5 and Vega.

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(https://img.novosti-kosmonavtiki.ru/222960.jpg) (http://www.arianespace.com/wp-content/uploads/2017/05/5-17-2017-lg.jpg)
The basic three-stage Soyuz launcher for Flight VS17 is raised into position in the ELS launch zone, where it was fitted with the SES-15 payload and Fregat upper stage.
 
For the company's next liftoff, a medium-lift Soyuz is now in the Spaceport's ELS launch zone, fitted with its SES-15 telecommunications satellite payload. Undergoing the countdown for a morning departure on Thursday, May 18, this launch is designated Flight VS17 in Arianespace's launcher family numbering system – signifying the 17th mission with the Russian-built workhorse vehicle since it entered service at the Spaceport in 2011.

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Flight VS17 will mark Arianespace's fifth mission so far in 2017, following two launches with the heavy-lift Ariane 5, and one each utilizing Soyuz and the light-lift Vega.

Preparing for the next two Ariane 5 flights

Elsewhere at the Spaceport, the next Ariane 5 has moved fr om the Launcher Integration Building to the Final Assembly Building, wh ere a dual payload of the Viasat-2 and Eutelsat E172B telecommunications satellites will be integrated. This mission is designated Flight VA237, denoting the 237th flight with an Ariane launcher since the family of European-built vehicles began Spaceport operations in 1979.

Спойлер

Activity also has begun for the subsequent Ariane 5 launch, VA238, which will loft the Hellas-Sat 3/Inmarsat S relay satellite and the GSAT-17 telecommunications spacecraft for the Indian Space Research Organisation.

GSAT-17 arrived in French Guiana this week aboard a chartered cargo jetliner that landed at Cayenne's Félix Eboué Airport. Separately, elements for Flight VA238's Ariane 5 launch vehicle were delivered to Kourou's Pariacabo port by the MN Toucan roll-on/roll-off transport ship, completing a trans-Atlantic sea voyage that also carried launcher components for Arianespace's next Vega mission.
 
(https://img.novosti-kosmonavtiki.ru/222959.jpg)
India's GSAT-17 satellite for Arianespace's Flight VA238 with Ariane 5 is unloaded from a chartered cargo jetliner at Cayenne's Félix Eboué Airport (at left), while the Ariane 5 for Flight VA237 is transferred to the Spaceport's Final Assembly Building (center). In the photo at right, the Zefiro 9 third stage for Arianespace's next Vega launcher is unloaded from the MN Toucan ship at Kourou's Pariacabo port.
 
Larger versions of the photos above are available to download in the Gallery (http://www.arianespace.com/gallery/).

[свернуть]

ЦитироватьViaSat-2 travels to Launch!

Цитировать (https://img.novosti-kosmonavtiki.ru/185546.png) ViaSat Inc.‏ @ViaSatInc (https://twitter.com/ViaSatInc) 2 ч. назад (https://twitter.com/ViaSatInc/status/865960324863844352)

What's orbit-raising? It's how ViaSat-2 gets to its final geostationary orbit: http://bddy.me/2qIv5Ls  (https://t.co/3XBXaPe2Mj) #ViaSatInc (https://twitter.com/hashtag/ViaSatInc?src=hash) #VS2 (https://twitter.com/hashtag/VS2?src=hash) #InternetfromSpace (https://twitter.com/hashtag/InternetfromSpace?src=hash)
(https://img.novosti-kosmonavtiki.ru/162725.jpg)

ЦитироватьWhat Happens After ViaSat 2 Launches: Step 1. Orbit Raising

First, a bit about orbital mechanics....

A rocket launching a commercial geostationary satellite generally leaves the satellite in what is known as a transfer orbit. These orbits may have apogees (high points) at geosynchronous altitudes, known as a Geosynchronous Transfer Orbit (GTO), above geosynchronous altitudes, known as a Super-Synchronous Transfer Orbit (SSTO), or with altitudes below geosynchronous altitudes, known as a Sub-Synchronous Transfer Orbit. From whichever orbit the rocket leaves the satellite in, it is up to the satellite to move itself to its final geostationary orbit.

Спойлер

Generally speaking, all transfer orbits have a number of elements in common:

[/li]
• They're elliptical – there is generally a significant difference between apogee and perigee.
• They're inclined – geostationary satellites, like ViaSat-2, operate over the equator at 0° inclination, relative to the equator.  Almost all transfer orbits are significantly inclined relative to the equator.
  

That being said, following launch, a satellite has to circularize its orbit and eliminate any remaining inclination prior to being able to provide service to customers. These maneuvers are accomplished through firing the satellite's onboard thrusters. In the case of ViaSat-2,  the satellite uses its chemical propulsion system to circularize its orbit and then uses its electric propulsion to remove inclination and perform all station-keeping.

The differences between chemical and electric propulsion are significant in a number of ways, including:

[/li]
• Mass of fuel – the fuel for chemical propulsion is much heavier and bulkier than electric propulsion for the equivalent work performed.
• Thrust – chemical propulsion provides much higher thrust than electric propulsion.
• Fuel efficiency – electric propulsion is much more efficient than chemical propulsion.
  

Within the last few years, fully electric  satellites have become a reality. This breakthrough technology allows a significant mass reduction in satellites without sacrificing payload capabilities. This is incredibly important because it allows the use of a smaller and more cost-effective rocket to launch a satellite just as capable as a heretofore large satellite.

With ViaSat-2, we are performing a large portion of the orbit raising electrically as we didn't look to reduce launch mass, but instead our goal was to increase the payload capability.  In other words, we increased capacity for the same launch mass. ViaSat-3 will utilize electric propulsion exclusively, thus allowing an even greater payload as a fraction of total launch mass.

One Critical Difference

One significant difference to electric propulsion is its extremely low thrust, which means it takes the satellite longer to reach its orbital slot. The difference is like comparing the acceleration capabilities of the most powerful Ferrari to that of a Prius. The Ferrari will out accelerate the Prius at the expense of fuel economy. The Prius will accelerate slowly, but more efficiently and will continue to build momentum over time. That's what electric propulsion is about – building momentum over time.

Instead of taking about two weeks to complete orbit-raising, which was the case with ViaSat-1, it will take several months for ViaSat-2 to reach its final orbital destination. The tradeoff is that we're going to have a satellite with over double the capacity of ViaSat-1 without having to resort to a much larger and more expensive rocket to launch it.

[свернуть]

ЦитироватьThe Final Assembly Building currently is occupied by the Ariane 5 for Arianespace Flight VA237, which is set for a June 1 liftoff with the ViaSat-2 and Eutelsat E172B telecommunications satellites. This Ariane 5 is installed on the second mobile launch table used by Arianespace's heavy-lift vehicles, and awaits its dual-passenger payload integration.

• http://www.csgpreparationlancement.com/wp-content/uploads/2017/05/MEP-logos_025.jpg(http://www.csgpreparationlancement.com/wp-content/uploads/2017/05/MEP-logos_025-150x150.jpg)
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Цитировать (https://img.novosti-kosmonavtiki.ru/185390.png) Arianespace‏ @Arianespace (https://twitter.com/Arianespace) 9 мин. назад (https://twitter.com/Arianespace/status/867405400768905216)

#Arianespace (https://twitter.com/hashtag/Arianespace?src=hash) to serve global connectivity for @ViaSatInc (https://twitter.com/ViaSatInc) and @Eutelsat_SA (https://twitter.com/Eutelsat_SA). Read the press release: http://bit.ly/2qgyujC (https://t.co/YbL2Cerd6z)
https://video.twimg.com/tweet_video/DAmkj9_W0AALUJj.mp4 (https://video.twimg.com/tweet_video/DAmkj9_W0AALUJj.mp4)

ЦитироватьAriane 5 (http://www.arianespace.com/press-releases/?taxonomy%5Bpress-release-category%5D=ariane-5) | May 24, 2017

Arianespace to serve global connectivity for ViaSat Inc. and Eutelsat

(https://img.novosti-kosmonavtiki.ru/223111.jpg)

For its sixth launch of the year, and the third Ariane 5 mission in 2017 from the Guiana Space Center in French Guiana, Arianespace will orbit two satellites: ViaSat-2 for ViaSat Inc.; and EUTELSAT 172B for Eutelsat.

This mission – the 237th overall by an Ariane launcher – will mark a new all-time Arianespace record for a total payload weight orbited: 10,865 kg., including a net mass at liftoff of 9,969 kg. for the two satellites.

ViaSat-2 and EUTELSAT 172B are the 558th and 559th satellites to be launched by Arianespace.
With this 289th mission by the Arianespace family of launchers (Ariane 5, Soyuz and Vega), Arianespace is serving global connectivity on Earth.

The launch will be from Ariane Launch Complex No. 3 (ELA 3) in Kourou, French Guiana.
The Launch Readiness Review (LRR) will take place on Tuesday, May 30, 2017 in Kourou, to authorize the start of operations for the final countdown.

ViaSat-2

Спойлер

is the first ViaSat satellite to be launched by Arianespace.

ViaSat Inc., a new customer for Arianespace and its Ariane 5 launch vehicle, provides international communities with broadband internet connectivity, accessible on land, at sea and in the air, at competitive rates in relation to other satellite or terrestrial services.

The ViaSat-2 satellite system should bring considerable improvements in terms of speed, lower costs and extended broadband coverage within its footprint, as well as along the main aeronautical and maritime routes linking North America and Europe (Atlantic Ocean).

ViaSat-2 will also provide nearly twice the capacity offered by previous generations of ViaSat satellites, along with seven times as much coverage.

Positioned at 70° West, ViaSat-2 will provide throughput of approximately 300 Gbps in Ka-band over its coverage zone, which includes North and Central America, plus the Caribbean, northern South America, and aeronautical and maritime routes in the Atlantic Ocean between North America and Europe.

ViaSat-2 was built by Boeing in El Segundo, California, using a 702HP platform.

[свернуть]

EUTELSAT 172B

Спойлер

will be the 32nd satellite launched by Arianespace for Eutelsat. Both companies have worked side-by-side since 1983, when Arianespace launched the Eutelsat-1 F1 satellite. Including this upcoming launch, more than half of Eutelsat's satellites will have been orbited by Arianespace.

Eutelsat is one of the world's leading and most experienced operators of communications satellites. The company provides capacity on 39 satellites to clients that include broadcasters and broadcasting associations; pay-TV operators; video, data and Internet service providers; enterprises and government agencies.

EUTELSAT 172B will deliver increased capacity for fast-growing applications that include in-flight and maritime connectivity, cellular backhaul, corporate networks, video distribution and government services. It will be located at 172° East, a key neighborhood providing exceptional Asia-Pacific reach over land and sea, from Alaska to Australia.

EUTELSAT 172B is the first all-electric telecommunications satellite built in Europe. This key enabling technology has been implemented by Airbus in Toulouse, using the new all-electric Eurostar E3000 EOR (Electric Orbit Raising) platform.

[свернуть]

For further information, download the Launch Kit by clicking here: http://www.arianespace.com/press-kits/

To watch a live, high-speed online transmission of the launch (including commentary from the launch site in French and Eng-lish), go to arianespace.com (http://www.arianespace.com) on June 1, 2017 starting 15 minutes before liftoff.

You also can follow the launch live on your iPhone or iPad (the Arianespace HD app is free).

About Arianespace

Спойлер

To use space for a better life on earth, Arianespace guarantees access to space transportation services and solutions for any type of satellite, commercial as well as institutional, into any orbit.

Since 1980, Arianespace has performed missions placing more than 550 satellites into orbit with its three launchers: Ariane, Soyuz and Vega.

Arianespace is headquartered in Evry, France near Paris, and has a facility at the Guiana Space Center in French Guiana, plus local offices in Washington, D.C., Tokyo and Singapore.

Arianespace is a subsidiary of Airbus Safran Launchers, which holds 74% of its share capital; the balance is held by 17 other shareholders from the European launcher industry.

[свернуть]

Цитироватьmik73 пишет:
А объясните дилетанту:

Насколько я нарыл в Интернетах, отделяемая масса (или как это правильно назвать?, то, что отделяется от носителя на ГПО) уViaSat-2 - 6800 кг, Eutelsat 172B - 3500 кг. Вместе получается 10300 кг.
А Ариан-5 в варианте ECA, как я опять же нарыл в Интернетах, выводит на ГПО 10500 единичной нагрузки или 10000 - если выводит два аппарата. Интересно, за счет чего получается 10300 в этот раз?

Цитироватьtnt22 пишет:
This mission – the 237th overall by an Ariane launcher – will mark a new all-time Arianespace record for a total payload weight orbited: 10,865 kg., including a net mass at liftoff of 9,969 kg. for the two satellites.

Цитировать (https://img.novosti-kosmonavtiki.ru/185546.png) ViaSat Inc.‏ @ViaSatInc (https://twitter.com/ViaSatInc) 31 мин. назад (https://twitter.com/ViaSatInc/status/868119550046482432)

Once ViaSat-2 is in its final orbital slot, we test it to ensure it's ready for operation: http://bddy.me/2r4aYHX  (https://t.co/iIvih25291) #VS2 (https://twitter.com/hashtag/VS2?src=hash) #InternetfromSpace (https://twitter.com/hashtag/InternetfromSpace?src=hash)
(https://img.novosti-kosmonavtiki.ru/162758.jpg)

ЦитироватьWhat Happens After ViaSat 2 Launches: Step 2. In-Orbit Test

After we have designed, built and launched a satellite into space, and it has reached its geostationary orbital slot, we do not immediately call it operational. In fact, we commence the next phase of the process, known as In-Orbit Test (IOT), which evaluates the health of the satellite and characterizes its performance post launch.

IOT is the last major test on the satellite before it goes into service and is necessary for a number of reasons:

• To make sure that the satellite meets all performance requirements in our contract with the satellite provider (in the case of ViaSat-2 that would be Boeing). If it doesn't, then there are contractual remedies for that.
• To make sure that nothing broke during launch or orbit raising phases.
• To characterize the satellite's actual, on orbit performance so that we more acutely determine the services that the satellite can provide to our customers.
  

In IOT, we thoroughly test all bus and payload systems and compare the results to the ground test results performed by Boeing prior to launch, in order to determine overall health and performance.

Additionally, we'll perform antenna mapping where the satellite is pitched and rolled to move each beam through a ground station so that we can measure its Radio Frequency (RF) performance. The trick here is to capture as many beams on each pitch or roll cut to minimize the time and fuel necessary to perform the cuts, but still characterize each beam.

Finally, once IOT is complete, the satellite provider will compile all of the data and will hold an IOT review with ViaSat. The goal of the review is to declare the satellite to be healthy and specification compliant. Once this occurs, the satellite provider will hand over control of the satellite to ViaSat.

At this point, the satellite is ready to deliver high-speed, high-quality broadband internet service.

Цитироватьmik73 пишет:
Значит где-то нас обманывают.

ЦитироватьThis mission – the 237th overall by an Ariane launcher – will mark a new all-time Arianespace record for a total payload weight orbited: 10,865 kg., including a net mass at liftoff of 9,969 kg. for the two satellites.

ЦитироватьPirat5 пишет:
В чем заключается вопрос?

ЦитироватьArianespace Flight VA237: ViaSat-2 and EUTELSAT 172B
 
 (https://img.novosti-kosmonavtiki.ru/220938.jpg)  (https://www.youtube.com/channel/UCRn9F2D9j-t4A-HgudM7aLQ)
Arianespace (https://www.youtube.com/channel/UCRn9F2D9j-t4A-HgudM7aLQ)

Опубликовано: 29 мая 2017 г.

ЦитироватьArianespace Flight VA237: ViaSat-2 and EUTELSAT 172B
 
 (https://img.novosti-kosmonavtiki.ru/220938.jpg)  (https://www.youtube.com/channel/UCRn9F2D9j-t4A-HgudM7aLQ)
Arianespace (https://www.youtube.com/channel/UCRn9F2D9j-t4A-HgudM7aLQ)

Опубликовано: 29 мая 2017 г.

Цитироватьmik73 пишет:

ЦитироватьPirat5 пишет:
В чем заключается вопрос?

Уже не в чём. Точнее в том, что в разных источниках масса ViaSat-2 очень разная. Разобрались. Закрыли тему.

ЦитироватьEutelsat 172B - The satellite for In-Flight Connectivity
 
 (https://img.novosti-kosmonavtiki.ru/220630.jpg)  (https://www.youtube.com/user/eutelsatvideo)
Eutelsat SA (https://www.youtube.com/channel/UC80qlUzNDSH-Jzep9oeVtOQ)

Опубликовано: 23 мая 2017 г.

ЦитироватьEUTELSAT 172B, a custom-designed HTS mission for mobility services [INTERVIEW]
 
 (https://img.novosti-kosmonavtiki.ru/220630.jpg)  (https://www.youtube.com/user/eutelsatvideo)
Eutelsat SA (https://www.youtube.com/channel/UC80qlUzNDSH-Jzep9oeVtOQ)

Опубликовано: 26 мая 2017 г.

ЦитироватьEUTELSAT 172B, the new flagship satellite for the Asia-Pacific region [INTERVIEW]
 
 (https://img.novosti-kosmonavtiki.ru/220630.jpg)  (https://www.youtube.com/user/eutelsatvideo)
Eutelsat SA (https://www.youtube.com/channel/UC80qlUzNDSH-Jzep9oeVtOQ)

Опубликовано: 29 мая 2017 г.

Jean-François Fenech, CEO - Eutelsat Asia, presents the main customer benefits of EUTELSAT 172B, a unique satellite designed to provide mobility, video and data services in a dynamic region.

ЦитироватьViaSat, Inc. Is Launching ViaSat-2 Communications Satellite

 (https://img.novosti-kosmonavtiki.ru/220730.jpg)  (https://www.youtube.com/user/ViaSatInc)
ViaSat Inc. (https://www.youtube.com/channel/UCScm2m51dUiXte0s9mljl3g)

Опубликовано: 25 мая 2017 г.

Groundbreaking technology. Record breaking speeds. State-of-the-art internet experiences.

On June 1, ViaSat-2 will launch into space. As the world's foremost communications satellite, ViaSat-2 will deliver 300 Gigabits per second (Gbps) of total network capacity, improve broadband speeds significantly and provide seven times the coverage over its predecessor, ViaSat-1.

This satellite system will show the world that satellite is not a service of last resort, but a strong terrestrial broadband service alternative.

Цитироватьtnt22 пишет:

ЦитироватьEUTELSAT 172B, a custom-designed HTS mission for mobility services [INTERVIEW]   
 
     
 г.

ЦитироватьAriane 5 : que se passe-t-il 24h avant le lancement ?
 
 (https://img.novosti-kosmonavtiki.ru/220750.jpg)  (https://www.youtube.com/user/CNESespace)
CNES (https://www.youtube.com/channel/UCOixknKUV8AaCA5uaaBY0Bw)

ЦитироватьArianespace Flight VA237: ViaSat-2 and EUTELSAT 172B

 (https://img.novosti-kosmonavtiki.ru/220938.jpg)  (https://www.youtube.com/channel/UCRn9F2D9j-t4A-HgudM7aLQ)
Arianespace (https://www.youtube.com/channel/UCRn9F2D9j-t4A-HgudM7aLQ)

Опубликовано: 29 мая 2017 г.

ЦитироватьAriane 5 (http://www.arianespace.com/mission-updates/?taxonomy%5Bmission-update-category%5D=ariane-5) | May 30, 2017

Arianespace's Ariane 5 is "go" for liftoff on June 1 with the ViaSat-2 and EUTELSAT 172B satellite passengers

The sixth Arianespace launch of 2017 is approved for liftoff on June 1 fr om the Spaceport in French Guiana, with the heavy-lift Ariane 5 now complete with its dual-satellite payload of ViaSat-2 and EUTELSAT 172B.

The authorization for this week's mission – designated Flight VA237 in Arianespace's launcher family numbering system – followed today's Launch Readiness Review, which confirmed the "go" status for Ariane 5, its two spacecraft passengers, the Spaceport infrastructure and the network of tracking stations.

(https://img.novosti-kosmonavtiki.ru/222966.jpg)
Flight VA237's dual payload is integrated in the Spaceport's Final Assembly Building, with EUTELSAT 172B positioned atop Ariane 5's core stages (at left), followed by the lowering of the "upper composite," consisting of ViaSat-2 and the SYLDA dispenser system, protected by the launcher's payload fairing.

Flight VA237's Ariane 5 is now ready for rollout from the Final Assembly Building, wh ere ViaSat-2 and EUTELSAT 172B were integrated on the launcher, to the Spaceport's ELA-3 launch zone.

Liftoff will commence as soon as possible in a one-hour launch window that opens at 8:45 p.m. in French Guiana (between 23:45 and 00:45 Universal Time, during the night of June 1 to June 2).

ViaSat-2 and EUTELSAT 172B will be deployed into geostationary transfer orbit on a mission lasting just under 42 minutes.

Released first will be ViaSat-2, which is expected to bring considerable improvements in terms of speed, lower costs and extended broadband coverage within its footprint, which includes North and Central America, plus the Caribbean, northern South America, and the aeronautical and maritime routes in the Atlantic Ocean between North America and Europe. As a global broadband services and technology company, ViaSat operates from corporate headquarters in Carlsbad, California.

ViaSat-2 was built by Boeing in El Segundo, California, using a 702HP platform, and will be positioned at 70 deg. West.

EUTELSAT 172B's deployment by Ariane 5 will complete Arianespace's Flight VA237. Operating at an orbital position of 172 deg. East for Asia-Pacific reach over land and sea from Alaska to Australia, the relay platform will deliver increased capacity for fast-growing applications that include in-flight and maritime connectivity, cellular backhaul, corporate networks, video distribution and government services. This satellite will join the fleet of Paris-based Eutelsat, a leading satellite operator in Europe, the Middle East and Africa.

Using the new all-electric Eurostar E3000 EOR (Electric Orbit Raising) platform assembled by Airbus in Toulouse, France, EUTELSAT 172B is the initial all-electric telecommunications satellite built in Europe – and the first orbited by Ariane 5.

Flight VA237 maintains Arianespace's busy launch schedule in 2017, during which the company is targeting a total of 12 flights using its heavy-lift Ariane 5, medium-lift Soyuz and lightweight Vega vehicles. The five missions already performed this year have utilized two Ariane 5s, two Soyuz launchers and one Vega.

Larger versions of the photos above are available to download in the Gallery (http://www.arianespace.com/gallery/).
 
Launch window for Flight VA237:

French Guiana	Universal Time (UTC)	Washington, D.C.	Paris
Between 8:45 p.m. and  9:45 p.m. on June 1	Between 23:45 and  00:45 on June 1/2	Between 7:45 p.m. and  8:45 p.m. on June 1	Between 1:45 a.m. and  2:45 a.m. on June 2

Цитировать (https://img.novosti-kosmonavtiki.ru/185390.png) Arianespace‏ @Arianespace (https://twitter.com/Arianespace) 12 мин. назад (https://twitter.com/Arianespace/status/869671205082509316)

Launch readiness confirmed! Approval given for @Arianespace (https://twitter.com/Arianespace)'s #Ariane5 (https://twitter.com/hashtag/Ariane5?src=hash) #VA237 (https://twitter.com/hashtag/VA237?src=hash) liftoff w/ ViaSat-2 and EUTELSAT 172B: http://bit.ly/2qxhutV (https://t.co/pYPYvG0zxS)
https://video.twimg.com/tweet_video/DBGul-iWAAQfTvY.mp4 (https://video.twimg.com/tweet_video/DBGul-iWAAQfTvY.mp4)

Цитировать (https://img.novosti-kosmonavtiki.ru/186003.jpg) Vanessa O'Connor‏ @VanessaEutelsat (https://twitter.com/VanessaEutelsat) 7 ч назад (https://twitter.com/VanessaEutelsat/status/869602882785603584)

Cool @Eutelsat_SA (https://twitter.com/Eutelsat_SA) info on EUTELSAT 172B sat. 39.2 m wingspan equivalent to 3 double-decker coaches in a row. #VA237 (https://twitter.com/hashtag/VA237?src=hash) #LetsLaunch (https://twitter.com/hashtag/LetsLaunch?src=hash) on 1 June!
(https://img.novosti-kosmonavtiki.ru/162879.jpg)

Цитировать (https://img.novosti-kosmonavtiki.ru/185546.png) ViaSat Inc.‏ @ViaSatInc (https://twitter.com/ViaSatInc) 7 ч. назад (https://twitter.com/ViaSatInc/status/869602969280552960)

12 Fun Facts About ViaSat-2. #VS2 (https://twitter.com/hashtag/VS2?src=hash) #ViaSatInc (https://twitter.com/hashtag/ViaSatInc?src=hash) #InternetfromSpace (https://twitter.com/hashtag/InternetfromSpace?src=hash)
(https://img.novosti-kosmonavtiki.ru/162880.jpg)

ЦитироватьArianespace Flight VA237: ViaSat-2 and EUTELSAT 172B
 
 (https://img.novosti-kosmonavtiki.ru/220938.jpg)  (https://www.youtube.com/channel/UCRn9F2D9j-t4A-HgudM7aLQ)
Arianespace (https://www.youtube.com/channel/UCRn9F2D9j-t4A-HgudM7aLQ)

Опубликовано: 30 мая 2017 г.

ЦитироватьEUTELSAT 172B, the first European-built all-electric satellite [INTERVIEW]

 (https://img.novosti-kosmonavtiki.ru/220630.jpg)  (https://www.youtube.com/user/eutelsatvideo)
Eutelsat SA (https://www.youtube.com/channel/UC80qlUzNDSH-Jzep9oeVtOQ)

Опубликовано: 30 мая 2017 г.

Christophe Duchêne, Director European Satellite Programmes, explains the technical characteristics of the all-electric EUTELSAT 172B satellite and shares key phases of the launch campaign.

ЦитироватьEUTELSAT 172B - A new star for Asia-Pacific

 (https://img.novosti-kosmonavtiki.ru/220630.jpg)  (https://www.youtube.com/user/eutelsatvideo)
Eutelsat SA (https://www.youtube.com/channel/UC80qlUzNDSH-Jzep9oeVtOQ)

Опубликовано: 30 мая 2017 г.

EUTELSAT 172B will deliver increased capacity for fast-growing applications that include in-flight and maritime connectivity, cellular backhaul, corporate networks, video distribution and government services.
It will be located at 172° East, a key neighborhood providing exceptional Asia-Pacific reach over land and sea, from Alaska to Australia.

Цитировать (https://pbs.twimg.com/profile_images/740932957309947906/eyELdt9o_bigger.jpg) Stéphane Israël‏ @arianespaceceo (https://twitter.com/arianespaceceo) 11 мин. назад (https://twitter.com/arianespaceceo/status/870004507299721216)

Rollout completed: #Ariane5 (https://twitter.com/hashtag/Ariane5?src=hash) is in the launch zone for tomorrow's Flight #VA237 (https://twitter.com/hashtag/VA237?src=hash), which will orbit the ViaSat-2 and EUTELSAT 172B satellites
(https://img.novosti-kosmonavtiki.ru/163014.jpg)

Цитировать (https://img.novosti-kosmonavtiki.ru/185390.png) Arianespace‏ @Arianespace (https://twitter.com/Arianespace) 11 мин назад (https://twitter.com/Arianespace/status/870008527456043008)

#Ariane5 (https://twitter.com/hashtag/Ariane5?src=hash) is in the launch zone for @Arianespace (https://twitter.com/Arianespace)'s June 1 mission at the service of @ViaSatInc (https://twitter.com/ViaSatInc) & @Eutelsat_SA (https://twitter.com/Eutelsat_SA) http://bit.ly/2rccBEY  (https://t.co/Tjx2hvprwK) #VA237 (https://twitter.com/hashtag/VA237?src=hash)
(https://img.novosti-kosmonavtiki.ru/163015.jpg)

ЦитироватьAriane 5 (http://www.arianespace.com/mission-updates/?taxonomy%5Bmission-update-category%5D=ariane-5) | May 31, 2017

Ariane 5 rolls out for Arianespace's heavy-lift mission with ViaSat-2 and EUTELSAT 172B

(https://img.novosti-kosmonavtiki.ru/223107.jpg)
The Ariane 5 for Flight VA237 moves into position at the Spaceport's ELA-3 launch zone.

The Ariane 5 for Arianespace's sixth mission overall in 2017 is now at the launch zone, ready for a June 1 evening departure from the Spaceport in French Guiana to inject the dual-satellite payload of ViaSat-2 and EUTELSAT 172B into geostationary transfer orbit.

Installed atop one of two mobile launch tables in service for Ariane 5, the heavy-lift vehicle was transferred today from the Spaceport's Final Assembly Building to its ELA-3 launch zone.

ViaSat-2 will be released first during tomorrow's nearly 42-minute mission, which is designated Flight VA237 in Arianespace's launcher family numbering system. The spacecraft – with a liftoff mass estimated at 6,418 kg. – will be operated from an orbital position of 70 deg. West by ViaSat, a global broadband services and technology company based in Carlsbad, California.

Boeing and Airbus-built satellite payloads for Flight VA237

The Boeing-built ViaSat-2 relay platform is designed to bring considerable improvements in terms of speed, lower costs and extended broadband coverage within its footprint, which includes North and Central America, plus the Caribbean, northern South America, and the aeronautical and maritime routes in the Atlantic Ocean between North America and Europe.

Completing Flight VA237 will be EUTELSAT 172B's deployment by Ariane 5. This spacecraft will join the fleet of Paris-based Eutelsat – a leading satellite operator in Europe, the Middle East and Africa – and has a liftoff mass set at 3,551 kg.

EUTELSAT 172B is to be located at an orbital position of 172 deg. East for Asia-Pacific reach over land and sea from Alaska to Australia, delivering increased capacity for fast-growing applications that include in-flight and maritime connectivity, cellular backhaul, corporate networks, video distribution and government services. The spacecraft was built by Airbus as the initial all-electric telecommunications satellite produced in Europe – and the first of its type to be orbited by Ariane 5.
 

[/li]
• A larger version of the photo above is available for downloading in the Gallery (http://www.arianespace.com/gallery/).
  

Цитировать (https://img.novosti-kosmonavtiki.ru/185546.png) ViaSat Inc.‏ @ViaSatInc (https://twitter.com/ViaSatInc) 2 ч. назад (https://twitter.com/ViaSatInc/status/870278799409254400)

It's launch day for ViaSat-2 on #Ariane5 (https://twitter.com/hashtag/Ariane5?src=hash) #VA237 (https://twitter.com/hashtag/VA237?src=hash)! Watch the livestream at 4:30 p.m. PDT here: https://www.viasat.com/  (https://t.co/IRzSwVcRgw) #VS2 (https://twitter.com/hashtag/VS2?src=hash) #InternetfromSpace (https://twitter.com/hashtag/InternetfromSpace?src=hash)

48 мин. назад (https://twitter.com/ViaSatInc/status/870297770346897408)

The @Arianespace (https://twitter.com/Arianespace) Launch Center is already buzzing with activity. #VS2 (https://twitter.com/hashtag/VS2?src=hash) #ViaSatInc (https://twitter.com/hashtag/ViaSatInc?src=hash) #InternetfromSpace (https://twitter.com/hashtag/InternetfromSpace?src=hash) #Ariane5 (https://twitter.com/hashtag/Ariane5?src=hash) #VA237 (https://twitter.com/hashtag/VA237?src=hash)
(https://img.novosti-kosmonavtiki.ru/163065.jpg)

Цитировать (https://img.novosti-kosmonavtiki.ru/186003.jpg) Vanessa O'Connor‏ @VanessaEutelsat (https://twitter.com/VanessaEutelsat) 54 мин. назад (https://twitter.com/VanessaEutelsat/status/870350823863324672)

Live from Kourou, all indicators green for launch of @Eutelsat_SA (https://twitter.com/Eutelsat_SA) APAC satellite. #VA237 (https://twitter.com/hashtag/VA237?src=hash) looking good. #Letslaunch (https://twitter.com/hashtag/Letslaunch?src=hash)

Цитировать (https://img.novosti-kosmonavtiki.ru/185376.jpg) Spaceflight101 LIVE‏ @S101_Live (https://twitter.com/S101_Live) 27 мин. назад (https://twitter.com/S101_Live/status/870394750351945728)

#Ariane5 (https://twitter.com/hashtag/Ariane5?src=hash) entered countdown operations at 12:22 UTC today, starting with final tanking preps and launch facility close outs.

24 мин. назад (https://twitter.com/S101_Live/status/870395453715746816)

Power-up of #Ariane5 (https://twitter.com/hashtag/Ariane5?src=hash) occurred at L-10.5 hours to begin a detailed set of tests and prepare the various systems of the rocket.

23 мин. назад (https://twitter.com/S101_Live/status/870395659609944064)

Propellant Loading ops were to start at T-5 hrs before cryogenics flow at T-4:38 on the core stage & T-3:28 on the ESC-A 2nd Stage. #Ariane5 (https://twitter.com/hashtag/Ariane5?src=hash)

Цитировать (https://img.novosti-kosmonavtiki.ru/186003.jpg) Vanessa O'Connor‏ @VanessaEutelsat (https://twitter.com/VanessaEutelsat) 42 мин назад (https://twitter.com/VanessaEutelsat/status/870392172637544449)

Sneak peak at combined reach of ViaSat-1, ViaSat-2 + KA-SAT after tonight's launch. Go @ViaSatInc (https://twitter.com/ViaSatInc) Go @Eutelsat_SA (https://twitter.com/Eutelsat_SA)(https://img.novosti-kosmonavtiki.ru/163093.jpg)

Цитировать (https://img.novosti-kosmonavtiki.ru/185376.jpg) Spaceflight101 LIVE‏ @S101_Live (https://twitter.com/S101_Live) 8 мин. назад (https://twitter.com/S101_Live/status/870412387442200576)

Inside L-1 hour, #Ariane5 (https://twitter.com/hashtag/Ariane5?src=hash) receives an updated flight software version & enters preparations for the Synchronized Sequence.

Цитировать (https://img.novosti-kosmonavtiki.ru/185546.png) ViaSat Inc.‏ @ViaSatInc (https://twitter.com/ViaSatInc) 28 сек назад (https://twitter.com/ViaSatInc/status/870418477550411777)

Meanwhile, back at the Space Center, @EXEDEHARRY (https://twitter.com/EXEDEHARRY) is in the booth ready to provide commentary on today's launch. #VS2 (https://twitter.com/hashtag/VS2?src=hash) #ViaSatInc (https://twitter.com/hashtag/ViaSatInc?src=hash) #Ariane5 (https://twitter.com/hashtag/Ariane5?src=hash)
(https://img.novosti-kosmonavtiki.ru/163116.jpg)

Цитировать (https://img.novosti-kosmonavtiki.ru/185376.jpg) Spaceflight101 LIVE‏ @S101_Live (https://twitter.com/S101_Live) 2 мин. назад (https://twitter.com/S101_Live/status/870418397640699910)

Now half an hour to the opening of the launch window, final preparations for the synchronized sequence pick up at this point. #Ariane5 (https://twitter.com/hashtag/Ariane5?src=hash)

Цитировать (https://img.novosti-kosmonavtiki.ru/186003.jpg) Vanessa O'Connor‏ @VanessaEutelsat (https://twitter.com/VanessaEutelsat) 15 сек назад (https://twitter.com/VanessaEutelsat/status/870420436705832960)

From the Jupiter control room for #VA237 (https://twitter.com/hashtag/VA237?src=hash) - getting closer to lift-off @Eutelsat_SA (https://twitter.com/Eutelsat_SA) #Letslaunch (https://twitter.com/hashtag/Letslaunch?src=hash)
(https://img.novosti-kosmonavtiki.ru/163092.jpg)

Цитировать (https://img.novosti-kosmonavtiki.ru/185376.jpg) Spaceflight101 LIVE‏ @S101_Live (https://twitter.com/S101_Live) 3 мин. назад (https://twitter.com/S101_Live/status/870420140948631557)

The two satellites should now be in the process of switching to battery power, getting ready for a ~41-minute ride into orbit. #Ariane5 (https://twitter.com/hashtag/Ariane5?src=hash)

Цитировать (https://img.novosti-kosmonavtiki.ru/185376.jpg) Spaceflight101 LIVE‏ @S101_Live (https://twitter.com/S101_Live) 28 сек. назад (https://twitter.com/S101_Live/status/870422893167038465)

#Ariane5 (https://twitter.com/hashtag/Ariane5?src=hash) will enter its Synchronized Countdown Sequence at T-7 minutes to check off the final reconfigurations for liftoff.

Цитировать (https://img.novosti-kosmonavtiki.ru/67530.jpg) Spaceflight Now‏ @SpaceflightNow (https://twitter.com/SpaceflightNow) 2 мин. назад (https://twitter.com/SpaceflightNow/status/870423554491330561)

All systems go for launch of the 93rd Ariane 5 rocket on a record-breaking commercial launch in 10 minutes. Watch: https://spaceflightnow.com/2017/06/01/va-237-mission-status-center/ ... (https://t.co/K486QaIvyb)
(https://img.novosti-kosmonavtiki.ru/163094.jpg)

Цитировать (https://img.novosti-kosmonavtiki.ru/185376.jpg) Spaceflight101 LIVE‏ @S101_Live (https://twitter.com/S101_Live) 35 сек. назад (https://twitter.com/S101_Live/status/870424370820395008)

T-7 Minutes & Counting. Synchronized Sequence has kicked in, #Ariane5 (https://twitter.com/hashtag/Ariane5?src=hash) now going through dozens of reconfigurations for launch.

Цитировать (https://img.novosti-kosmonavtiki.ru/185376.jpg) Spaceflight101 LIVE‏ @S101_Live (https://twitter.com/S101_Live) 1 мин. назад (https://twitter.com/S101_Live/status/870424534305964032)

T-6:30: Cryogenics are being topped up to flight level before tanking closes out in preparation for tank pressurization. #Ariane5 (https://twitter.com/hashtag/Ariane5?src=hash)

Цитировать (https://img.novosti-kosmonavtiki.ru/185376.jpg) Spaceflight101 LIVE‏ @S101_Live (https://twitter.com/S101_Live) 1 мин. назад (https://twitter.com/S101_Live/status/870424648164536320)

T-6 Minutes: Ground ordnances are being enabled, Helium pressurization gas loading on the second stage is closing out. #Ariane5 (https://twitter.com/hashtag/Ariane5?src=hash)

Цитировать (https://img.novosti-kosmonavtiki.ru/186040.jpg) Chris B - NSF‏ @NASASpaceflight (https://twitter.com/NASASpaceflight) 3 мин. назад (https://twitter.com/NASASpaceflight/status/870426650265219072)

LAUNCH! Ariane 5 launches with ViaSat-2 and Eutelsat 172B - Follow Along Live: https://forum.nasaspaceflight.com/index.php?topic=42558.40 ... (https://t.co/0cSt3JuJ2V) (Harry used the Rumble/Jungle line!)
(https://img.novosti-kosmonavtiki.ru/163096.jpg)
(https://img.novosti-kosmonavtiki.ru/163097.jpg)
(https://img.novosti-kosmonavtiki.ru/163098.jpg)

Цитировать (https://img.novosti-kosmonavtiki.ru/186040.jpg) Chris B - NSF‏ @NASASpaceflight (https://twitter.com/NASASpaceflight) 2 мин. назад (https://twitter.com/NASASpaceflight/status/870427274079875074)

There go the boosters...
(https://img.novosti-kosmonavtiki.ru/163095.jpg)
(https://img.novosti-kosmonavtiki.ru/163099.jpg)

51 сек. назад (https://twitter.com/NASASpaceflight/status/870427372515991552)

And there goes the fairing.
(https://img.novosti-kosmonavtiki.ru/163101.jpg)
(https://img.novosti-kosmonavtiki.ru/163102.jpg)
(https://img.novosti-kosmonavtiki.ru/163103.jpg)

Цитировать (https://img.novosti-kosmonavtiki.ru/185376.jpg) Spaceflight101 LIVE‏ @S101_Live (https://twitter.com/S101_Live) 2 мин. назад (https://twitter.com/S101_Live/status/870428130506399744)

The Natal tracking station in Brazil is now providing telemetry from the #Ariane5 (https://twitter.com/hashtag/Ariane5?src=hash), covering staging & the initial phase of the Stage 2 burn.

Цитировать (https://img.novosti-kosmonavtiki.ru/186040.jpg) Chris B - NSF‏ @NASASpaceflight (https://twitter.com/NASASpaceflight) 37 сек назад (https://twitter.com/NASASpaceflight/status/870428631973195776)

Staging 1-2. On to the Upper Stage. 16 minute burn. Already en route to Africa after launching from South America.
(https://img.novosti-kosmonavtiki.ru/163100.jpg)
(https://img.novosti-kosmonavtiki.ru/163104.jpg)
(https://img.novosti-kosmonavtiki.ru/163105.jpg)

Цитировать (https://img.novosti-kosmonavtiki.ru/185376.jpg) Spaceflight101 LIVE‏ @S101_Live (https://twitter.com/S101_Live) 4 мин. назад (https://twitter.com/S101_Live/status/870429433425002497)

Planned Loss of Signal. #Ariane5 (https://twitter.com/hashtag/Ariane5?src=hash) now passing through a short comm gap as Natal hands off to the Ascension tracking station.


3 мин. назад (https://twitter.com/S101_Live/status/870429539956117505)

Acquisition of Signal by Ascension Island, covering the majority of the rocket's leg across the Atlantic. #Ariane5 (https://twitter.com/hashtag/Ariane5?src=hash)


3 мин. назад (https://twitter.com/S101_Live/status/870429769116131329)

#Ariane5 (https://twitter.com/hashtag/Ariane5?src=hash) is passing minimum altitude at 140 Kilometers. Speed: 7.7km/s, Downrange: 3,900km

Цитировать (https://img.novosti-kosmonavtiki.ru/185376.jpg) Spaceflight101 LIVE‏ @S101_Live (https://twitter.com/S101_Live) 42 сек. назад (https://twitter.com/S101_Live/status/870430769998647296)

The Libreville Tracking Station in Gabon has acquired #Ariane5 (https://twitter.com/hashtag/Ariane5?src=hash) as the vehicle is about to finish its pass across the Atlantic.

Цитировать (https://img.novosti-kosmonavtiki.ru/185376.jpg) Spaceflight101 LIVE‏ @S101_Live (https://twitter.com/S101_Live) 33 сек. назад (https://twitter.com/S101_Live/status/870432113832734720)

The Malindi, Kenya tracking station has acquired #Ariane5 (https://twitter.com/hashtag/Ariane5?src=hash), providing telemetry through S/C separation and passivation.

Цитировать (https://img.novosti-kosmonavtiki.ru/67530.jpg) Spaceflight Now‏ @SpaceflightNow (https://twitter.com/SpaceflightNow) 1 мин. назад (https://twitter.com/SpaceflightNow/status/870434149588504580)

ViaSat 2 separation confirmed, beginning mission for the highest-capacity communications satellite ever launched https://spaceflightnow.com/2017/06/01/va-237-mission-status-center/ ... (https://t.co/K486QaIvyb)
(https://img.novosti-kosmonavtiki.ru/163106.jpg)

Цитировать (https://img.novosti-kosmonavtiki.ru/185376.jpg) Spaceflight101 LIVE‏ @S101_Live (https://twitter.com/S101_Live) 2 мин. назад (https://twitter.com/S101_Live/status/870434243809300480)

SYLDA JETTISON - The Sylda adapter has departed the upper stage, clearing the way for the separation of the mission's second passenger.


1 мин. назад (https://twitter.com/S101_Live/status/870434325329850368)

ESC-A is maneuvering for another ten minutes to reach a slightly different orbit for the separation of Eutelsat 172B. #Ariane5 (https://twitter.com/hashtag/Ariane5?src=hash)

Цитировать (https://img.novosti-kosmonavtiki.ru/185376.jpg) Spaceflight101 LIVE‏ @S101_Live (https://twitter.com/S101_Live) 1 мин. назад (https://twitter.com/S101_Live/status/870436727512608768)

SEPARATION! The all-electric Eutelsat 172B satellite is on its way, starting a lengthy orbit-raising campaign. http://bit.ly/2rcFYpk  (https://t.co/kMiYczEpAn)
(https://img.novosti-kosmonavtiki.ru/163111.jpg)

Цитировать (https://pbs.twimg.com/profile_images/740932957309947906/eyELdt9o_bigger.jpg) Stéphane Israël‏ @arianespaceceo (https://twitter.com/arianespaceceo) 48 сек. назад (https://twitter.com/arianespaceceo/status/870437093872467972)

.@Arianespace (https://twitter.com/Arianespace) is keeping up the momentum with its sixth success this year from the Spaceport. Six more launches to come in 2017!

Цитировать (https://img.novosti-kosmonavtiki.ru/186040.jpg) Chris B - NSF‏ @NASASpaceflight (https://twitter.com/NASASpaceflight) 4 мин. назад (https://twitter.com/NASASpaceflight/status/870436706410954752)

S/C Sep! ARTICLE: Ariane 5 conducts ViaSat-2, Eutelsat 172B launch out of CSG - https://www.nasaspaceflight.com/2017/06/ariane-5-dual-payload-launch-csg/ ... (https://t.co/Hx1LbiLW4y) - COVERAGE: https://forum.nasaspaceflight.com/index.php?topic=42558.0 ... (https://t.co/myYd0hwm85)
(https://img.novosti-kosmonavtiki.ru/163107.jpg)
(https://img.novosti-kosmonavtiki.ru/163108.jpg)
(https://img.novosti-kosmonavtiki.ru/163109.jpg)
(https://img.novosti-kosmonavtiki.ru/163110.jpg)

Цитировать (https://img.novosti-kosmonavtiki.ru/67530.jpg) Spaceflight Now‏ @SpaceflightNow (https://twitter.com/SpaceflightNow) 6 мин. назад (https://twitter.com/SpaceflightNow/status/870439196237975552)

Arianespace confirms a good launch tonight, extending Ariane 5's streak to 79 straight successful missions. https://spaceflightnow.com/2017/06/01/va-237-mission-status-center/ ... (https://t.co/K486QaIvyb)
(https://img.novosti-kosmonavtiki.ru/163113.jpg)

Цитировать (https://pbs.twimg.com/profile_images/740932957309947906/eyELdt9o_bigger.jpg) Stéphane Israël‏ @arianespaceceo (https://twitter.com/arianespaceceo) 2 мин. назад (https://twitter.com/arianespaceceo/status/870440632887783424)

#VA237 (https://twitter.com/hashtag/VA237?src=hash)'s total 10,865 kg. payload orbited is an all-time #Arianespace (https://twitter.com/hashtag/Arianespace?src=hash) record, including a net liftoff mass of 9,969 kg. for the satellites
(https://img.novosti-kosmonavtiki.ru/163114.jpg)

ЦитироватьLiftoff of Arianespace's Ariane 5 with ViaSat-2 and EUTELSAT 172B

 (https://img.novosti-kosmonavtiki.ru/220938.jpg)  (https://www.youtube.com/channel/UCRn9F2D9j-t4A-HgudM7aLQ)
Arianespace (https://www.youtube.com/channel/UCRn9F2D9j-t4A-HgudM7aLQ)

Опубликовано: 1 июн. 2017 г.

Arianespace has successfully launched two telecommunications satellites: ViaSat-2 for ViaSat Inc.; and EUTELSAT 172B for the operator Eutelsat – which is the first all-electric satellite to be orbited by an Ariane 5.

ЦитироватьLaunch of Heaviest Ariane 5 to Date with ViaSat-2 & Eutelsat 172B (VA-237)

 (https://img.novosti-kosmonavtiki.ru/220764.jpg)  (https://www.youtube.com/user/SpaceVidsNet)
Space Videos (https://www.youtube.com/channel/UCdF5d0UwSJJunRcRVzP1uDg)

ЦитироватьAriane 5 (http://www.arianespace.com/mission-updates/?taxonomy%5Bmission-update-category%5D=ariane-5) | June 1, 2017

Liftoff of Arianespace's Ariane 5 with ViaSat-2 and EUTELSAT 172B

(https://img.novosti-kosmonavtiki.ru/223119.jpg)   
The Arianespace mission with ViaSat-2 and EUTELSAT 172B is now underway following Ariane 5's liftoff from the Spaceport in French Guiana.

Total lift performance for today's launch is estimated at 10,865 kg., with the two satellites to be deployed during a flight lasting nearly 42 minutes.

ЦитироватьAriane 5 (http://www.arianespace.com/mission-updates/?taxonomy%5Bmission-update-category%5D=ariane-5) | June 1, 2017

Arianespace marks its 2017 mid-year launch milestone with a record-setting Ariane 5 mission at the service of ViaSat and Eutelsat

(https://img.novosti-kosmonavtiki.ru/223113.jpg)
The Ariane 5 for Flight VA237 is shown at the Spaceport's ELA-3 launch zone, ready for liftoff with its ViaSat-2 and EUTELSAT 172B satellite passengers.

On its sixth successful launch during the first half of 2017, Arianespace's Ariane 5 set a new heavy-lift record tonight in delivering the ViaSat-2 and EUTELSAT 172B telecommunications satellites to geostationary transfer orbit.

This mission underscored the increased payload lift capability provided for the Ariane 5 ECA version during the heavy-lift workhorse's operational career, setting another record for the total mass carried into geostationary transfer orbit. The delivery involved a total payload of 10,865 kg. – of which 9,969 kg. was the net liftoff mass for the two satellites, with the other mass including integration hardware for Ariane 5's dual-payload deployment system.

Спойлер

"With this new mission, Arianespace once again demonstrates the availability and versatility of its launch vehicle family for customers," explained Arianespace CEO Stéphane Israël. "For the third time this year and the 79th time in a row, Ariane 5 performed flawlessly. Well done! Congratulations to all!"

 

Providing more lift capability to the workhorse Ariane 5 ECA

Speaking from the Spaceport, Israël noted the Ariane 5 ECA's payload lift capability has been given an overall performance gain of more than 1.5 metric tons since the beginning of this launcher program, and will be further increased in steps through 2019, boosting it by another 250 kg. – enabling Arianespace to meet evolving customer requirements. This enhancement involves support of the European Space Agency, the French CNES space agency and Ariane 5 industrial prime contractor Airbus Safran Launchers, he added.

Tonight's mission – designated Flight VA237 in Arianespace's launcher family numbering system – keeps the company on track for the 12 flights targeted in 2017. It follows the five previous launches this year – two by Ariane 5, two by Soyuz and one by Vega – and clears the way for Arianespace's next Ariane 5 mission, scheduled for June 28, along with three more Ariane 5 liftoffs and two Vega launches planned during the second half of 2017.

The first passenger released during Flight VA237 was ViaSat-2, which is to be operated from an orbital position of 70 deg. West by ViaSat – a global broadband services and technology company headquartered in Carlsbad, California, USA.

 

ViaSat-2: enhancing connectivity over a wide coverage area

With the goal of improving global connectivity, ViaSat-2 is to bring considerable improvements in terms of speed, lower costs and extended broadband across its coverage zone – which includes North and Central America, plus the Caribbean, northern South America, and aeronautical and maritime routes in the Atlantic Ocean between North America and Europe.

ViaSat-2 was the second satellite to be launched by Arianespace for VisSat. Based on Boeing's 702HP platform, it also was the 54th Boeing-built satellite orbited by the company.

 

An electric satellite "first" for Ariane 5

Completing tonight's Flight VA237 was the deployment of EUTELSAT 172B – the 32nd satellite launched by Arianespace for Paris-based Eutelsat, a leading satellite operator in Europe, the Middle East and Africa.

EUTELSAT 172B will increase Eutelsat's capacity for fast-growing applications, such as in-flight and at-sea connectivity, mobile network interconnections, video and government services. Built by Airbus, it will be positioned at 172 deg. East – a strategic orbital position for coverage of Asia-Pacific, on land and at sea, from Alaska to Australia.

As the 118th Airbus-produced satellite orbited by Arianespace, this spacecraft uses the Eurostar E3000 EOR (Electric Orbit Raising) platform – becoming the first all-electric telecommunications satellite orbited by an Ariane 5.

[свернуть]

ЦитироватьAriane 5 (http://www.arianespace.com/press-releases/?taxonomy%5Bpress-release-category%5D=ariane-5) | June 1, 2017

Flight VA237: On mission that boosts global connectivity for ViaSat and Eutelsat, the 79th successful launch by Arianespace's Ariane 5 sets a new performance record and orbits its first all-electric satellite

(https://img.novosti-kosmonavtiki.ru/223120.jpg)

Arianespace has successfully launched two telecommunications satellites: ViaSat-2 for ViaSat Inc.; and EUTELSAT 172B for the operator Eutelsat – which is the first all-electric satellite to be orbited by an Ariane 5.

The launch took place on Thursday, June 1 at 8:45 pm (local time) from the Guiana Space Center (CSG), Europe's Spaceport in Kourou, French Guiana.

Today's launch was the sixth of the year for Arianespace, and the third in 2017 with the Ariane 5 heavy launcher, which recorded its 79th successful mission in a row. The Ariane 5 ECA also set a new performance record into geostationary transfer orbit, carrying a total payload of 10,865 kg. (of which 9,969 kg. was the net liftoff mass for the two satellites).

With this mission – the 289th by its family of launchers – Arianespace is at the service of connectivity on a global scale.

Спойлер

Arianespace at the service of ViaSat Inc.

ViaSat-2 is the second ViaSat Inc. satellite to be launched by Arianespace, after WildBlue-1 in 2006.

ViaSat, a global broadband services and technology company, aims to change the general perception of satellite internet, globally. The company has set out to advance global connectivity and solve one of the hardest communications problems: making the internet accessible and affordable to all.

The ViaSat-2 satellite system will bring considerable improvements in terms of speed, lower costs and extended broadband coverage. Its coverage zone includes North and Central America, plus the Caribbean, northern South America, and aeronautical and maritime routes in the Atlantic Ocean between North America and Europe.

ViaSat has also chosen Arianespace to launch a ViaSat-3 class satellite, further extending the partnership between the two companies.

ViaSat-2 was built by Boeing in El Segundo, California, using the 702HP platform.  [/li] 54th Boeing satellite launched by Arianespace since orbiting Aussat K3 in 1987. 4th satellite based on the 702HP platform to be launched by Arianespace. 3 other Boeing satellites in the Arianespace order book for future launches.

Arianespace launches first all-electric satellite for Eutelsat with Ariane 5

EUTELSAT 172B is the 32nd satellite launched by Arianespace for Eutelsat, starting with EUTELSAT-1 F1 in 1983.

Eutelsat is one of the world's leading telecom satellite operators, with a fleet of 39 satellites serving a broad range of customers.

Including today's mission, Arianespace has now orbited more than half of all Eutelsat satellites.

EUTELSAT 172B will increase the operator's capacity for fast-growing applications, such as in-flight and at-sea connectivity, mobile network interconnections, video and government services. It will be positioned at 172° East – a strategic orbital position providing exceptional coverage of Asia-Pacific, on land and at sea, from Alaska to Australia.

Two more Eutelsat satellites are in Arianespace's order book.

EUTELSAT 172B is the first all-electric telecommunications satellite to be built in Europe by Airbus, in Toulouse, France, and uses the new all-electric Eurostar E3000 EOR (Electric Orbit Raising) platform.

It is also the first all-electric satellite to be launched by Arianespace on an Ariane 5.

Airbus' development of all-electric Eurostar satellites was supported by ESA and European national space agencies, especially CNES in France, in the framework of the PIA program (Program for Investments in the Future). [/li] EUTELSAT 172B is the 118th Airbus satellite launched by Arianespace. The Arianespace order book includes 15 Airbus satellites to be launched.

Arianespace confirms its advantages: reliability, performance, availability, flexibility

79th success in a row for Ariane 5, and a new performance record for the Ariane 5 ECA version

The payload for Flight VA237 set a new record for the mass carried into geostationary transfer orbit, totaling 10,865 kg. (9,969 kg. net for the satellites). With this performance, Ariane 5 beats its previous record of 10,737 kg. (9,856 kg. for the satellites), set on August 24, 2016 during Flight VA232. This launch brings the total performance gain achieved since the beginning of Ariane 5 ECA operations to more than 1.5 metric tons. This performance will continue to gradually increase during the coming years.

 

A sustained launch rate, thanks to the availability of Arianespace's launcher family

With six launches, all successful, between January 27 and June 1 (three by Ariane 5, two by Soyuz and one by Vega), Arianespace maintains a sustained pace of operations. To date this year, Arianespace has already orbited eight geostationary satellites, totaling 34.57 metric tons, and one Earth observation satellite.

The three successful launches in less than a month – two by Ariane 5 (May 4 and June 1) and one by Soyuz (May 18 )  –  clearly show the operational maturity of Arianespace's family of launchers. The next Ariane 5 launch, planned for June 28, will bring the total number of launches in the first half of 2017 to seven. Three more Ariane 5 missions and two with Vega are planned during the second half of the year.

Arianespace at the service of in-flight connectivity

The in-flight connectivity market, boosted by strong development momentum, is expected to grow by 300% in the next 10 years, with the number of Internet-enabled aircraft increasing from 5,300 in 2015 to more than 26,500 in 2025. Arianespace clearly supports these new space-based applications designed to improve people's lives, with six geostationary satellites dedicated to in-flight connectivity in its order book for future launches, plus the OneWeb low-Earth orbit constellation.

Shortly after the announcement of the orbital injection of the two satellites on today's Flight VA237, Arianespace Chief Executive Officer Stéphane Israël said: "With this third successful Ariane 5 launch of the year, and the 79th consecutive success in a row, Arianespace proudly delivers its service excellence to our American and European customers in support of global connectivity. The new all-time payload weight record set by this launch, which also was the first orbiting of an all-electric satellite by our heavy launcher, confirms the power and flexibility of Ariane 5.

"We are very honored by the confidence shown by ViaSat Inc., which has chosen Arianespace for the second time, as well as that of the European operator Eutelsat, for whom we have launched 32 satellites since 1983. Our congratulations to Boeing, which built ViaSat-2, and to Airbus, which built EUTELSAT 172B – the first satellite to use Europe's all-electric Eurostar E3000 EOR platform.

"I would also like to thank all of our partners in this 93rd Ariane 5 launch: our majority shareholder Airbus Safran Launchers and the entire European launcher industry, for the exceptional reliability and availability of Ariane 5; the European Space Agency, which provides essential support for the Ariane program; the French CNES space agency and the Guiana Space Center; and our ground segment companies and all staff at the space center, who continue to work alongside us as we go from success to success. And of course, I would like to congratulate everybody at Arianespace for this successful sixth launch of the year!"

ViaSat-2 was built by Boeing in El Segundo, California, using the 702HP platform. Positioned at 70° West, it will provide about 300 Gbps of throughput in Ka-band for North and Central America and the Caribbean, northern South America, and the aeronautical and maritime routes in the Atlantic Ocean between North America and Europe. It weighed 6,418 kg. at liftoff and offers a design life exceeding 14 years. EUTELSAT 172B was built by Airbus in Toulouse, France, using the new all-electric Eurostar E3000 EOR platform. Positioned at 172° East, EUTELSAT 172B will provide fixed and mobile services, as well as in-flight connectivity for the Asia-Pacific region. It weighed 3,551 kg. at liftoff and offers a design life exceeding 15 years.

About Arianespace

Arianespace uses space to make life better on Earth by providing launch services for all types of satellites into all orbits. It has orbited more than 550 satellites since 1980, using its family of three launchers, Ariane, Soyuz and Vega, from launch sites in French Guiana (South America) and Baikonur, Kazakhstan. Arianespace is headquartered in Evry, near Paris, and has a technical facility at the Guiana Space Center, Europe's Spaceport in French Guiana, plus local offices in Washington, D.C., Tokyo and Singapore. Arianespace is a subsidiary of Airbus Safran Launchers, which holds 74% of its share capital, with the balance held by 17 other shareholders from the European launcher industry.

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ЦитироватьDécollage d'Ariane 5 le 1er juin depuis le CSG

 (https://img.novosti-kosmonavtiki.ru/220705.jpg)  (https://www.youtube.com/user/cnescsg)
CNES CSG (https://www.youtube.com/channel/UCe5WxcqciZKvkJr2_AOhVsA)

ЦитироватьArianespace Flight VA237 / ViaSat-2 and EUTELSAT 172B

 (https://img.novosti-kosmonavtiki.ru/220938.jpg)  (https://www.youtube.com/channel/UCRn9F2D9j-t4A-HgudM7aLQ)
Arianespace (https://www.youtube.com/channel/UCRn9F2D9j-t4A-HgudM7aLQ)

Опубликовано: 1 июн. 2017 г.

Arianespace has successfully launched two telecommunications satellites: ViaSat-2 for ViaSat Inc.; and EUTELSAT 172B for the operator Eutelsat – which is the first all-electric satellite to be orbited by an Ariane 5.

The launch took place on Thursday, June 1 at 8:45 pm (local time) from the Guiana Space Center (CSG), Europe's Spaceport in Kourou, French Guiana.

Today's launch was the sixth of the year for Arianespace, and the third in 2017 with the Ariane 5 heavy launcher, which recorded its 79th successful mission in a row. The Ariane 5 ECA also set a new performance record into geostationary transfer orbit, carrying a total payload of 10,865 kg. (of which 9,969 kg. was the net liftoff mass for the two satellites).

With this mission – the 289th by its family of launchers – Arianespace is at the service of connectivity on a global scale.

ЦитироватьС космодрома Куру стартовала ракета Ariane 5 с двумя спутниками
© AFP 2017 / Jody Amiet (http://ria.ru/docs/about/copyright_afp.html)  Ракета-носитель Ariane 5 готовится к запуску с космодрома Куру(https://img.novosti-kosmonavtiki.ru/133166.jpg)
ПАРИЖ, 2 июн — РИА Новости, Виктория Иванова. Ракета-носитель Ariane 5 со спутниками на борту в ночь на пятницу успешно стартовала с космодрома Куру во Французской Гвиане.
Старт ракеты состоялся в 20.45 в четверг по местному времени (02.45 мск пятницы).
Задачей этого пуска является выведение на орбиту двух телекоммуникационных спутников: американского ViaSat-2 и французского EUTELSAT 172B.
Эти спутники стали, соответственно, 558 и 559, выведенными на орбиту компанией Arianespace.
Запуск ракеты с космодрома Куру в ночь на пятницу стал шестым стартом с этой площадки с начала года.
Ariane-5 — европейская ракета-носитель, предназначенная для выведения грузов на низкую околоземную орбиту Земли. Запуски Ariane-5 производятся с космодрома Куру во Французской Гвиане. На разработку Ariane-5 было потрачено около 10 лет и 7 миллиардов долларов.

ЦитироватьAirbus: First high power all-electric satellite, EUTELSAT 172B, launched by Ariane 5

June 2, 2017 - Press release

All-electric propulsion for orbit-raising and on-station manoeuvers for the first time on a high power satellite inaugurates significant mass savings on this class of mission
Innovative payload technology will dynamically distribute power between spot beams to provide internet connectivity to aircraft over the Pacific
 
Kourou, 02/06/2017 –EUTELSAT 172B, the first high power all-electric telecommunications satellite worldwide built by Airbus for Eutelsat, one of the world's leading satellite operators, has been successfully launched from Kourou, French Guiana by Ariane 5. The satellite will provide enhanced telecommunications, in-flight broadband and broadcast services for the Asia-Pacific region.

"We are the first company to demonstrate full electric propulsion for satellites of this size and capacity," said Nicolas Chamussy, Head of Space Systems at Airbus. "With this spacecraft we are clearly setting a new benchmark - enabling powerful and complex satellites to be launched in the most cost efficient manner."

EUTELSAT 172B combines electric power of 13 kW with a launch mass of around 3,500 kg only, thanks to the latest EOR (Electric Orbit Raising) version of Airbus' highly reliable Eurostar E3000 platform.

Спойлер

(https://airbusdefenceandspace.com/wp-content/uploads/2017/06/eutel-2-682x1024.jpg)

Full electric propulsion for initial orbit raising and all on-station manoeuvres, with Xenon gas ejected at high speed using only electric power supplied by solar cells, relieves operators of the need to include tons of chemical propellant, leading to up to 40% mass savings on the satellite.

Customers can therefore either achieve a significant saving on launch costs, or a substantial increase of the payload power for a given mass. Furthermore the Hall Effect Technology used by Airbus makes transfer to the operational orbit significantly faster than other electric propulsion technologies.

Innovation solutions include two deployable robotic arms to orientate the satellite's electric propulsion thrusters to control thrust direction and attitude during different phases of the mission. In addition, WALIS (Wide Angle Localisation Integrated System) is a proprietary network of ground stations developed by Airbus around the world, to enable Airbus engineers to control orbit raising operations until the satellite reaches geostationary orbit.

The development of Airbus' Eurostar all electric satellites has been supported by ESA and space agencies of European countries, in particular in France by CNES in the framework of the PIA programme (Plan d'Investissements d'Avenir) and in the UK by the UK Space Agency.

(https://airbusdefenceandspace.com/wp-content/uploads/2017/06/eutel-1-1024x576.jpg)

EUTELSAT 172B hosts three distinct payloads that will strengthen Eutelsat's capabilities across Asia-Pacific markets: a C-band payload, a regular Ku-band payload and a high throughput Ku-band payload designed for in-flight connectivity along Pacific air corridors.in that regard, the satellite features an innovative multi-port amplifier (MPA) on the payload to distribute dynamically the satellite's power between its 11 spot beams to provide internet connectivity for aircraft flying across the Asia-Pacific region.

The flexibility of the MPA means that more power can be allocated to each spot beam as demand increases giving aircraft passengers a better service. The MPA technology was developed by Airbus as part of the European Space Agency's Advanced Research in Telecommunications Systems programme and supported by the UK Space Agency.

Additive layer manufacturing, or 3D printing, is further exploited for several elements on this satellite, including for a single printed bracket that is 35% lighter than and quicker to manufacture than the complex component it replaced.

Notes for editors: You can download photos, videos, footage, infographics and interviews at: https://we.tl/mmSEm8FC1A

About Airbus

Airbus is a global leader in aeronautics, space and related services. In 2016, it generated revenues of € 67 billion and employed a workforce of around 134,000. Airbus offers the most comprehensive range of passenger airliners from 100 to more than 600 seats. Airbus is also a European leader providing tanker, combat, transport and mission aircraft, as well as Europe's number one space enterprise and the world's second largest space business. In helicopters, Airbus provides the most efficient civil and military rotorcraft solutions worldwide.

Press contacts:
Ralph Heinrich
+49 (0)171 30 49 751
ralph.heinrich@airbus.com (mailto:ralph.heinrich@airbus.com)
Jeremy Close
+44 (0)7766 536 572
jeremy.close@airbus.com (mailto:jeremy.close@airbus.com)
Guilhem Boltz
+33 (0)6 34 78 14 08
guilhem.g.boltz@airbus.com (mailto:guilhem.g.boltz@airbus.com)
Francisco Lechón
+34 630 196 993
francisco.lechon@airbus.com (mailto:francisco.lechon@airbus.com)
 
Download
All ElectricPropulsion Satellites-EN-final (https://airbusdefenceandspace.com/wp-content/uploads/2017/06/all-electricpropulsion-satellites-en-final.pdf)

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ЦитироватьEUTELSAT 172B satellite soars into space

 •  Jun 02, 2017 02:55 GMT

(https://img.novosti-kosmonavtiki.ru/326102.bin)
Photo credit : Courtesy of Arianespace

First high-power all-electric satellite built by Airbus on its way to geo

New satellite to enhance service at key orbital position for Asia-Pacific, notably for mobile connectivity, government and data markets

Kourou, Paris, 2 June 2017– The EUTELSAT 172B satellite of Eutelsat Communications (NYSE Euronext Paris: ETL) was successfully launched into space tonight by an Ariane 5 rocket that took off at 23.45 GMT (20.45 Kourou time, 01.45 CET). The first telemetry data has been received from the 3.5 tonne satellite and preparations are now ongoing for solar array deployment on 3 June and deployment 22 hours later of robotic arms holding the satellite's electric propulsion system that will steer its ascent to geostationary orbit. Eutelsat's new satellite is scheduled to enter into service in fourth quarter 2017.

Спойлер

EUTELSAT 172B will deliver increased capacity for fast-growing applications that include in-flight and maritime connectivity, cellular backhaul, corporate networks, video and government services. It will be located at 172° East, a key neighbourhood providing exceptional Asia-Pacific reach over land and sea, from Alaska to Australia. Designed to replace EUTELSAT 172A, it will provide increased capacity, more power and improved coverage via C and Ku-band payloads connected to a range of service areas. Following the transfer of traffic to the new satellite EUTELSAT 172A will continue commercial service at another orbital position.

Setting a new benchmark for in-flight connectivity

EUTELSAT 172B also features a new Ku-band multi-beam payload delivering 1.8 Gbps of throughput to serve the world's fastest-growing region for air traffic. The Asia Pacific represents the largest opportunity for in-flight entertainment and connectivity services, with over 8,000 aircraft to be delivered to the region by 2034.

The customised High Throughput payload on EUTELSAT 172B will be a major growth platform for in-flight connectivity, notably Panasonic Avionics Corporation, one of the leading suppliers of in-flight entertainment and connectivity services for commercial airlines. Eleven elliptical beams will enable Panasonic to bridge the West coast of North America to Asia, and down to Australia, supporting rapid air traffic growth in the region and surges in bandwidth use across densely used flight paths. Panasonic will also use the satellite's widebeam Ku-band coverage as an overlay to deliver live TV to aircraft.

About Eutelsat Communications

Established in 1977, Eutelsat Communications (Euronext Paris: ETL, ISIN code: FR0010221234) is one of the world's leading and most experienced operators of communications satellites. The company provides capacity on 39 satellites to clients that include broadcasters and broadcasting associations, pay-TV operators, video, data and Internet service providers, enterprises and government agencies.

Eutelsat's satellites provide ubiquitous coverage of Europe, the Middle East, Africa, Asia-Pacific and the Americas, enabling video, data, broadband and government communications to be established irrespective of a user's location.

Headquartered in Paris, with offices and teleports around the globe, Eutelsat represents a workforce of 1,000 men and women from 37 countries who are experts in their fields and work with clients to deliver the highest quality of service.

For more about Eutelsat please visit    www.eutelsat.com (http://www.eutelsat.com)

Press
Vanessa O'Connor Tel: + 33 1 53 98 37 91 voconnor@eutelsat.com (mailto:voconnor@eutelsat.com)
Marie-Sophie Ecuer Tel: + 33 1 53 98 37 91 mecuer@eutelsat.com (mailto:mecuer@eutelsat.com)
    
Investors and analysts
Joanna Darlington Tel. : +33 1 53 98 35 30 jdarlington@eutelsat.com (mailto:jdarlington@eutelsat.com)
Cédric Pugni Tel. : +33 1 53 98 35 30 cpugni@eutelsat.com (mailto:cpugni@eutelsat.com)

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Цитироватьtnt22 пишет:
По данным n2yo

 Объект A
Эпоха UTC 2017-06-02 01:55:45, орбита 275.6 km × 35694.1 km × 6.0°, период 630.5 min

 Объект B
Эпоха UTC 2017-06-02 02:12:40, орбита 262.3 km × 35701.3 km × 6.0°, период 630.4 min
 
 Объект C
Эпоха UTC 2017-06-02 02:11:26, орбита -198.5 km × 35151.7 km × 5.7°, период 610.8 min

 Объект D
Эпоха UTC 2017-06-02 01:51:36, орбита 273.7 km × 35717.7 km × 6.0°, период 630.9 min

Цитироватьтавот пишет:
Я правильно понял, что и апогейник у него электрический, никакого гидразина ?

ЦитироватьViaSat-2 employs a hybrid propulsion system with traditional chemical propulsion for the initial climb toward Geostationary Orbit and electric propulsion for orbital fine-tuning and stationkeeping maneuvers. The satellite is equipped with a bipropellant Liquid Apogee Engine that is used for the initial climb to Geostationary Orbit. In addition, the satellite uses four axial 22-Newton Thrusters and four radial 10-Newton thrusters for smaller orbit adjustments, drifting in Geostationary Orbit and attitude maneuvers.

https://spaceflight101.com/ariane-5-va237/viasat-2/

ЦитироватьEUTELSAT 172B combines electric power of 13 kW with a launch mass of around 3,500 kg only, thanks to the latest EOR (Electric Orbit Raising) version of Airbus' highly reliable Eurostar E3000 platform.

ЦитироватьViaSat-2 Successfully Launched

CARLSBAD, Calif., June 2, 2017 /PRNewswire/ -- ViaSat Inc. (https://www.viasat.com/) (NASDAQ: VSAT), a global broadband services and technology company, is pleased to announce the successful launch of its ViaSat-2 satellite aboard an Arianespace Ariane 5 ECA launch vehicle. The Ariane 5 ECA carrying ViaSat-2 lifted off yesterday, June 1 at 4:45 pm PDT fr om the Guiana Space Center, located in Kourou, French Guiana.

Спойлер

(https://img.novosti-kosmonavtiki.ru/150101.jpg)

Approximately 29 minutes after liftoff, the ViaSat-2 mission was underway with the satellite separating from the launch vehicle. First signals from the satellite were acquired shortly thereafter through a ground station at Hassan, India. In the coming days, ViaSat-2 will start orbit raising with its chemical propulsion system, followed by solar array deployments, and will then switch over to its electric propulsion system to complete orbit raising over the coming months. ViaSat expects it will take several months for ViaSat-2 to reach its final orbital destination, located at 69.9° west longitude.

Mark Dankberg, ViaSat's chairman and CEO commented, "Today's successful launch is a momentous event in ViaSat's history. It represents the culmination of hard work, dedication and commitment to technical excellence from across the ViaSat team. We also want to recognize our launch team partners, Boeing and Arianespace, for their support and collaboration in helping us successfully launch ViaSat-2."

ViaSat-2 is a geostationary satellite that operates in Ka-band frequencies. It was designed to offer high-capacity connectivity and wide coverage, with the flexibility to move capacity to wh ere demand requires it. ViaSat-2 is expected to significantly improve speeds, reduce costs and expand the footprint of broadband services across North America, Central America, the Caribbean, a portion of northern South America, as well as the primary aeronautical and maritime routes across the Atlantic Ocean between North America and Europe.

Dankberg continued, "The innovations in our ViaSat-2 spacecraft and underlying network will enable us to be one step closer to connecting the world, and delivering new higher speed fixed and mobility services that will continue to compete with traditional broadband services."

"Arianespace is excited to have delivered for ViaSat!  We are proud to have launched one of the world's most advanced telecommunications satellites, ViaSat-2, safely to orbit. Great things are in store for our friends at ViaSat," said Stéphane Israël, CEO of Arianespace.

"We are honored that ViaSat has put their trust in Boeing to build and deliver their next-generation satellite, ViaSat-2, a high-power 702 satellite with advanced capabilities that will help ViaSat connect millions around the world through high-speed broadband service," said
Mark Spiwak, president, Boeing Satellite Systems International.

About ViaSat

ViaSat, Inc. (NASDAQ: VSAT (http://studio-5.financialcontent.com/prnews?Page=Quote&Ticker=VSAT)) keeps the world connected. As a global broadband services and technology company, ViaSat ensures consumers, businesses, governments and military personnel have communications access - anywhere - whether on the ground or in-flight. The Company's innovations in designing highest-capacity satellites and secure ground infrastructure and terminal technologies coupled with its international network of managed Wi-Fi hotspots enable ViaSat to deliver a best available network that extends the reach and accessibility of broadband internet service, globally. For more information visit ViaSat at:  www.viasat.com (https://www.viasat.com/), or follow the
Company on
 social media:  Facebook (https://www.facebook.com/ViaSat), Twitter (https://twitter.com/ViaSatInc), LinkedIn (https://www.linkedin.com/company/viasat) and YouTube (https://www.youtube.com/user/ViaSatInc).

Forward Looking Statement

This press release contains forward-looking statements that are subject to the safe harbors created under the Securities Act of 1933 and the Securities Exchange Act of 1934. Forward looking statements include statements about the orbital raising, solar array deployment, orbital slot placement and entry into service of the ViaSat-2 satellite and the timing thereof, as well as the anticipated benefits, performance, coverage, capacity, bandwidth economics, service speed and other features of the ViaSat-2 satellite. Readers are cautioned that actual results could differ materially from those expressed in any forward-looking statements. Factors that could cause actual results to differ include: risks associated with the orbital raising, solar array deployment, orbital slot placement,
 in-orbit testing and operation of the ViaSat-2 satellite, including the effect of any anomaly, operational failure or degradation in satellite performance, and the Company's ability to realize the anticipated benefits of the ViaSat-2 satellite. In addition, please refer to the risk factors contained in ViaSat's SEC filings available at www.sec.gov (http://www.sec.gov/), including ViaSat's most recent Annual Report on Form 10-K and Quarterly Reports on Form 10-Q. Readers are cautioned not to place undue reliance on any forward-looking statements, which speak only as of the date on which they are made. ViaSat undertakes no obligation to update or revise any forward-looking statements for any reason.

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ЦитироватьBoeing Satellite for ViaSat to Significantly Enhance Satellite Broadband Communications

The Boeing 702 ViaSat-2 satellite is one of the largest high-power commercial satellites built by Boeing


EL SEGUNDO, Calif., June 2, 2017 – Leveraging the recently launched Boeing [NYSE] 702 high-power satellite, ViaSat's second-generation satellite, ViaSat-2, will realize a seven-fold increase in broadband internet service coverage fr om its previous generation satellite and offer twice as much capacity on orbit.

Спойлер

ViaSat-2 will also offer flexibility to move satellite capacity to wh ere broadband demand exists and is the first satellite Boeing built for the company. Boeing is on contract to build two more satellites, under the ViaSat-3 program, both based on the 702 design and integrated with ViaSat payload technology.

"ViaSat-2 is a major technological achievement. It advances satellite system design and will provide the best economics, quality and service capabilities available in the industry," said Mark Dankberg, chairman and chief executive officer of ViaSat. "These advancements required a spacecraft partner, like Boeing, that could understand our vision for satellite broadband. We would like to thank Boeing for their hard work, expertise and contributions to the ViaSat-2 program. Our collaboration will enable ViaSat to bring internet to millions of users on the ground, in the air and at sea."

The satellite was launched, and sent its first signals from space, on June 1.

"We're glad to have continued to advance this flexible platform, relying on its flight-proven technology, while in great partnership with ViaSat to achieve their vision of connecting the world," said Mark Spiwak, president, Boeing Satellite Systems International."

For more information on Defense, Space & Security, visit www.boeing.com (http://www.boeing.com/). Follow us on Twitter: @BoeingDefense (https://twitter.com/boeingdefense).
 

# # #

Contact:

Joanna Climer
 Network & Space Systems
 Office: +1 310-364-7113
 Mobile: +1 310-227-3534
 joanna.e.climer@boeing.com (mailto:joanna.e.climer@boeing.com)

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Цитироватьtnt22 (http://novosti-kosmonavtiki.ru/forum/user/18282/) пишет:
NORAD опубликовал первичные наборы TLEна 4 объекта запуска, но пока не поместил их в основной каталог

Цитировать (https://img.novosti-kosmonavtiki.ru/29242.jpg) DutchSpace‏ @DutchSpace (https://twitter.com/DutchSpace) 2 июн. (https://twitter.com/DutchSpace/status/870573213927059458)

Some numbers for #Ariane5 (https://twitter.com/hashtag/Ariane5?src=hash) #VA237 (https://twitter.com/hashtag/VA237?src=hash) , requested performance was 10863.2 kg ,mass at lift-off for #ViaSat2 (https://twitter.com/hashtag/ViaSat2?src=hash):6417.6 kg and #Eutelsat172B (https://twitter.com/hashtag/Eutelsat172B?src=hash):3551.1 kg

ЦитироватьBEHIND THE SCENES

ЦитироватьArianespace Flight VA237 / ViaSat-2 and EUTELSAT

 (https://img.novosti-kosmonavtiki.ru/220938.jpg)  (https://www.youtube.com/channel/UCRn9F2D9j-t4A-HgudM7aLQ)
Arianespace (https://www.youtube.com/channel/UCRn9F2D9j-t4A-HgudM7aLQ)

Опубликовано: 2 июн. 2017 г.

Цитировать (https://img.novosti-kosmonavtiki.ru/186003.jpg) Vanessa O'Connor‏ @VanessaEutelsat (https://twitter.com/VanessaEutelsat) 3 ч. назад (https://twitter.com/VanessaEutelsat/status/871014631678119936)

EUTELSAT 172B update: solar panels now fully deployed and all looking good since @Arianespace (https://twitter.com/Arianespace) flawless launch(https://img.novosti-kosmonavtiki.ru/125513.png) . @Eutelsat_SA (https://twitter.com/Eutelsat_SA) @AirbusSpace (https://twitter.com/AirbusSpace)

Цитировать (https://img.novosti-kosmonavtiki.ru/185988.jpg) Peter B. de Selding‏ @pbdes (https://twitter.com/pbdes) 2 ч. назад (https://twitter.com/pbdes/status/873094291731513345)

Robotic arms w/ ion thrusters now positioned on @Eutelsat_SA (https://twitter.com/Eutelsat_SA) 172B launched June 2, raising sat to GEO orbit; to take ~4 months. Service Q4.
(https://img.novosti-kosmonavtiki.ru/162810.jpg)

ЦитироватьEUTELSAT 172B satellite begins ascent to geo
 •  Jun 09, 2017 07:55 GMT

Спойлер

(https://img.novosti-kosmonavtiki.ru/326101.bin)

[свернуть]

Paris, 9 June 2017 – Launched last Friday by an Ariane 5 rocket, the EUTELSAT 172B satellite has entered a new phase of its journey in space with the initiation of the ascent to geostationary orbit. The first European high power electric satellite, built by Airbus, will take approximately four months to complete the climb to 172° East, monitored by Eutelsat and Airbus from Toulouse using a dedicated network of stations located around the planet. Eutelsat's new satellite is scheduled to enter into service in the fourth quarter of this year.

Спойлер

Since launch, EUTELSAT 172B has undergone a series of critical manoeuvres that include positioning of electric propulsion motors attached to robotic arms in preparation for orbit-raising, and the full deployment of solar panels to generate power during this phase.

EUTELSAT 172B will deliver increased capacity for fast-growing applications that include in-flight and maritime connectivity, cellular backhaul, corporate networks, video and government services. It will be located at 172° East, a key neighbourhood providing exceptional Asia-Pacific reach over land and sea, from Alaska to Australia. Designed to replace EUTELSAT 172A, it will provide increased capacity, more power and improved coverage via C and Ku-band payloads connected to a range of service areas. Following the transfer of traffic to the new satellite EUTELSAT 172A will continue commercial service at another orbital position.

Rodolphe Belmer, CEO of Eutelsat, said: "A week since launch, EUTELSAT 172B has passed the critical stages of its deployment before embarking on the ascent to geo. This complex process reflects meticulous preparation by Eutelsat and Airbus teams who have worked hand in hand on a ground-breaking satellite programme customised for Asia-Pacific markets."

[свернуть]

Цитировать (https://img.novosti-kosmonavtiki.ru/185903.jpg) Eutelsat‏ @Eutelsat_SA (https://twitter.com/Eutelsat_SA) 22 ч. назад (https://twitter.com/Eutelsat_SA/status/875390581920456707)

All-electric sat EUTELSAT 172B left Earth for #Space (https://twitter.com/hashtag/Space?src=hash) 2 weeks ago. See recent and upcoming operations until it reaches #GEO (https://twitter.com/hashtag/GEO?src=hash) //@AirbusSpace (https://twitter.com/AirbusSpace)

Video (https://twitter.com/i/videos/tweet/875390581920456707)

Цитировать (https://img.novosti-kosmonavtiki.ru/185546.png) ViaSat Inc.‏ @ViaSatInc (https://twitter.com/ViaSatInc) 4 ч. назад (https://twitter.com/ViaSatInc/status/877887281188569088)

ViaSat-2 has completed its chemical orbit raising program & successfully deployed its solar arrays. #VS2 (https://twitter.com/hashtag/VS2?src=hash) #ViaSatInc (https://twitter.com/hashtag/ViaSatInc?src=hash) #InternetfromSpace (https://twitter.com/hashtag/InternetfromSpace?src=hash)

Video (https://twitter.com/i/videos/tweet/877887281188569088)

ЦитироватьEutelsat 172B запущен
Компания  Airbus сообщила о запуске первого электрического спутника высокой мощности  E utelsat 172 B с помощью ракеты-носителя  Ariane 5
Eutelsat 172B, первый полностью электрифицированный телекоммуникационный спутник высокой мощности, построенный Airbus для компании Eutelsat был успешно запущен с космодрома Куру (Французская Гвиана) при помощи ракеты-носителя Ariane 5. Спутник обеспечит улучшенную телекоммуникационную связь, а также услуги широковещательной передачи для Азиатско-Тихоокеанского региона.
"Мы являемся первой компанией, использующей полностью электрические двигатели  для спутников такого размера и мощности, – отметил руководитель направления космических систем Airbus Николя Шамусси. – С помощью этого космического аппарата мы задаем новый эталон в отрасли и открываем возможности запуска мощных и сложных спутников на орбиту с наибольшей экономической эффективностью".
Спутник Eutelsat 172B сочетает в себе электрическую мощность в 13 кВт и взлетную массу всего в 3500кг благодаря электроракетной двигательной установке EOR, спроектированной Airbus на базе высоконадежной платформы Eurostar E3000.
Применение полностью электрических ракетных двигателей для подъема орбиты и орбитального маневрирования, а также газа ксенона, выбрасываемого на высокой скорости и исключительно электрического питания от солнечных батарей, избавляет операторов от необходимости использования тонн химического топлива, и позволяет уменьшить массу спутника до 40%.
Таким образом, клиенты могут получить или существенную экономию при запуске спутника, или значительное увеличение полезной нагрузки. Кроме того, технология эффекта Холла  (Hall Effect Technology), используемая Airbus, позволяет осуществить вывод спутника на рабочую орбиту значительно быстрее.
Инновационные решения, включающие использование двух развертываемых роботизированных манипуляторов, помогут установить электрические ракетные двигатели в нужное положение, чтобы задать верное направление тяги и высоту во время различных фаз полетного задания. Кроме того, собственная сеть наземных станций WALIS, развернутая компанией Airbus, позволяет инженерам компании контролировать подъем орбиты и процесс достижения  спутником геостационарной орбиты.
Разработку электрифицированной платформы Eurostar компанией Airbus поддержали Европейское космическое агентство и другие космические ведомства европейских стран, в частности Национальный центр космических исследований (CNES) в рамках программы PIA ("План инвестиций в будущее", Plan d'Investissements d'Avenir), а также Космического агентства Великобритании.
Спутник Eutelsat 172B снабжен тремя видами оборудования, которые позволят улучшить функциональные возможности оператора Eutelsat в странах Азиатско-Тихоокеанского региона: транспондер C-диапазона, стандартный транспондер Ku-диапазона, а также транспондер Ku-диапазона с высокой пропускной способностью, предназначенный для  обеспечения услуг связи в полёте по тихоокеанским воздушным коридорам. Спутник также оснащен многоканальным усилителем (MPA), который позволяет распределить динамическую мощность спутника между 11 зонными лучами и обеспечить доступ к интернету для самолетов, выполняющих перелеты в Азиатско-Тихоокеанском регионе.
Эксплуатационная гибкость многоканального усилителя подразумевает увеличение пропускной способности по каждому лучу по мере увеличения потребности в интернет-услугах, что позволит значительно повысить уровень обслуживания пассажиров воздушных судов. Технология MPA разработана компанией Airbus в рамках перспективных исследований Европейского космического агентства по программам телекоммуникационных систем и при поддержке Космического агентства Великобритании.
Производство методом добавления слоев или 3D-печать, дополнительно использованная при создании некоторых элементов спутника, например, напечатанная на принтере скоба, на 35% легче и более быстрая в изготовлении, чем те сложные компоненты, которые она призвана заменить.

ЦитироватьInterview: ViaSat President and COO Richard A. Baldridge
by Peter B. de Selding (https://www.spaceintelreport.com/author/peter/) | Jun 28, 2017

Спойлер

(https://img.novosti-kosmonavtiki.ru/140055.webp)
Richard A. Baldridge, ViaSat's president and chief operating officer, said the company is determined to launch 1-Tbps ViaSat-3 satellites over Europe and Asia even if the Eutelsat partnership does not materialize and that no Asian partner is found. He said ViaSat-3 was on schedule and on budget, and that ViaSat-2, launched June 1, should reach its geostationary-orbit position in October. A high-resolution photograph of ViaSat-2 is in the upper right of this picture. (Just kidding) Credit: ViaSat

[свернуть]

Key takeaways:
— ViaSat-2 has completed its chemical burn, now on electric. All OK, it will reach GEO slot in October. You've likely never seen a detailed photo of ViaSat-2 and won't now.
...

ViaSat 2 is only partly electric.

Yes, the initial orbit raising is via chemical propulsion and the balance is electric, with electric station-keeping. So far, orbit raising is working just as planned.

How long until ViaSat-2 gets to final GEO position?

We finished the chemical part of the orbit raising and the current assessment is October arrival on station. Our co-passenger [Eutelsat's all-electric 172B] wasn't determined initially, and turned out to have greater mass than most. A lighter co-passenger would have allowed more chemical propellant and a shorter overall orbit raising time. But we're still happy with the trade-off, given that we'll have the use of the payload capability for far longer than the difference in the orbit raising time.

Спойлер

(https://img.novosti-kosmonavtiki.ru/140058.webp)
You think this is ViaSat-2? It's not. ViaSat, concerned about IP theft, has scrubbed public images of most of the interesting features. Credit: ViaSat

When can we see pictures of ViaSat-2? Why is it still under a burka?

Because we're really protective of our design and don't want to expose any more than we have to.

The logo you're showing in your ViaSat-2 PR campaign in fact is not the actual ViaSat-2.

No, and neither was the photo you saw on the cover of Aviation Week. We obscured the sensitive parts.

This may be the first secret commercial satellite. We can't even see it.

What you will see is the performance it provides once in service, which will be as good or better than we said. Remember when we advertised ViaSat-1 as a 100-Gbps satellite. We delivered 140. Given the results of the ground testing on ViaSat-2, we're optimistic we'll get the same kind of effects there. I think the end result of ViaSat-2 will be better than 300 Gbps.
...

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ЦитироватьViaSat-2 Launch Day

 (https://img.novosti-kosmonavtiki.ru/220730.jpg)  (https://www.youtube.com/user/ViaSatInc) ViaSat Inc. (https://www.youtube.com/channel/UCScm2m51dUiXte0s9mljl3g)

Опубликовано: 5 июл. 2017 г.

Цитировать (https://img.novosti-kosmonavtiki.ru/185903.jpg) Eutelsat‏ @Eutelsat_SA (https://twitter.com/Eutelsat_SA) 13 ч. назад (https://twitter.com/Eutelsat_SA/status/883611746845548544)

Sneak peek at 1st month of orbit raising of EUTELSAT 172B. Pursuing its ascent to Geo! #LetsLaunch (https://twitter.com/hashtag/LetsLaunch?src=hash)

Video (https://twitter.com/i/videos/tweet/883611746845548544)

Цитировать11 October 2017 • Space
Airbus-built full electric EUTELSAT 172B satellite reaches geostationary orbit in record time

(https://img.novosti-kosmonavtiki.ru/240633.jpg)

New telecommunications satellite has completed the first electric orbit raising for a high capacity satellite in just four months after its launch in June, a world first

Paris / Toulouse, 11/10/2017 – The EUTELSAT 172B spacecraft, built by Airbus for Eutelsat, one of the world's leading satellite operators, has now reached geostationary orbit, breaking the record for the fastest satellite electric orbit raising (EOR).

Спойлер

EUTELSAT 172B was launched by Ariane 5 from Kourou, in French Guiana, on 1 June 2017. The Airbus spacecraft control centre in Toulouse took control for early operations, initialisation, deployment of the solar array and electric propulsion arms, and completed initial testing prior to initiating the Electric Orbit Raising phase on 8 June. During this four-month phase, electric thrusters smoothly and efficiently propelled the satellite to the targeted orbit, consuming almost six times less propellant mass than for a satellite with chemical propulsion.

Following completion of the payload in-orbit tests and drift to its operational location led by the Eutelsat team, the satellite is scheduled to enter commercial service in November to provide enhanced telecommunications, in-flight broadband and broadcast services for the Asia-Pacific region. Its life span is expected to exceed 15 years thanks to electric propulsion for in-orbit raising and station-keeping.

"We are the first company to demonstrate full electric propulsion for satellites of this size and capacity, enabling their launch in the most cost-efficient manner. Furthermore with our system design, operation strategy and the plasma thruster technology we implement, we have completed the fastest electric orbit raising ever from transfer to geostationary orbit, which will allow Eutelsat to put their electric satellite into service in record time", said Nicolas Chamussy, Head of Space Systems at Airbus.

Yohann Leroy, Eutelsat's Chief Technical Officer, added: "EUTELSAT 172B confirms the relevance of Eutelsat's early adoption of electric propulsion technology to optimise capex. In combining electric propulsion, High Throughput capacity, robotic arms and 3D printing techniques, our new satellite also reflects Europe's capability to push the envelope of innovation in order to increase the competitiveness of our business. We look forward to bringing EUTELSAT 172B into service next month for our clients in the Asia-Pacific region."

EUTELSAT 172B combines 13 kW of payload power with a launch mass of only 3,550 kg, thanks to the latest EOR version of Airbus' highly reliable Eurostar E3000 platform.

The EOR success and reaching orbit in record time was made possible by two Airbus innovations:

- A pair of deployable robotic arms which orientate the satellite's electric propulsion thrusters, and control thrust direction and attitude during different phases of the mission.

- The WALIS (Wide Angle Localisation Integrated System) network of ground stations around the world, developed by Airbus, which has enabled engineers to control orbit raising operations until the satellite reached geostationary orbit.

The development of Airbus' Eurostar all-electric satellites has been supported by ESA and space agencies of European countries, in particular in France by the CNES in the framework of the PIA programme (Plan d'Investissements d'Avenir) and in the UK by the UK Space Agency.
...

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Цитировать (https://img.novosti-kosmonavtiki.ru/185903.jpg) Eutelsat‏ @Eutelsat_SA (https://twitter.com/Eutelsat_SA) 26 окт. (https://twitter.com/Eutelsat_SA/status/923466767195951106)

A new milestone for EUTELSAT 172B (https://img.novosti-kosmonavtiki.ru/125535.png) ! Control handed over to @Eutelsat_SA (https://twitter.com/Eutelsat_SA) Paris from @AirbusSpace (https://twitter.com/AirbusSpace) control centre in Toulouse #LetsLaunch (https://twitter.com/hashtag/LetsLaunch?src=hash)
(https://img.novosti-kosmonavtiki.ru/169529.jpg)

ЦитироватьОКБ «ФАКЕЛ». НОВЫЙ РЕКОРД ДОВЫВЕДЕНИЯ КА EUTELSAT ДВИГАТЕЛЯМИ SPT-140
31.10.2017 15:24

Космический аппарат (КА) EUTELSAT 172B, на котором установлены электрические двигатели SPT-140, произведенные калининградским ОКБ «Факел» (входит в Госкорпорацию «РОСКОСМОС») побил последний рекорд по самому быстрому довыведению с промежуточной (геопереходной) орбиты на геостационарную с помощью электрических двигателей SPT-140. С момента запуска до достижения геостационарной орбиты прошло всего 4 месяца.

Во время стадии подъема электродвигатели аппарата отработали успешно и вывели спутник на целевую орбиту. При этом топлива было использовано в 6 раз меньше, чем для спутников с химическими двигателями.

По плану EUTELSAT 172B должен приступить к функционированию для коммерческих целей в ноябре текущего года для предоставления услуг связи, широкополосного вещания и сбора данных над Азиатско-Тихоокеанским регионом. Спутник, сконструированный компанией Airbus для Eutelsat, рассчитан на 15-летний ресурс. Дальнейшие коррекции орбиты космического аппарата так же будут обеспечиваться электродвигателями, произведенными в ОКБ «Факел». Космический аппарат был запущен с космодрома Куру 1 июня 2017 года на ракете-носителе Ariane-5.

Цитировать (https://img.novosti-kosmonavtiki.ru/185546.png) ViaSat Inc.‏ @ViaSatInc (https://twitter.com/ViaSatInc) 8 нояб. (https://twitter.com/ViaSatInc/status/928386915300200448)

ViaSat-2 update: gaining control of satellite by end of Dec '17, set to scale consumer service in Feb '18 $VSAT (https://twitter.com/search?q=%24VSAT&src=ctag) #broadbandforall (https://twitter.com/hashtag/broadbandforall?src=hash)

Цитировать (https://img.novosti-kosmonavtiki.ru/185973.jpg) Caleb Henry‏ @CHenry_SN (https://twitter.com/CHenry_SN) 51 мин назад (https://twitter.com/CHenry_SN/status/932962405201727488)

Eutelsat-172b entered service today after 4-month electric orbit raising, replacing Eutelsat-172A. After transferring customers, Eutelsat moving the 172A satellite to "an alternative orbital position" also over the Asia-Pacific.
(https://img.novosti-kosmonavtiki.ru/171231.jpg)

 (https://img.novosti-kosmonavtiki.ru/185903.jpg) Eutelsat‏ @Eutelsat_SA (https://twitter.com/Eutelsat_SA) 15 мин. назад (https://twitter.com/Eutelsat_SA/status/932972139485057025)

It's here! EUTELSAT 172B satellite open for business in Asia-Pacific http://ow.ly/Rro930gIE3D (https://t.co/BhQ50A1rq2)
https://video.twimg.com/tweet_video/DPKUikWX0AAcP66.mp4 (https://video.twimg.com/tweet_video/DPKUikWX0AAcP66.mp4)
(Video (https://video.twimg.com/tweet_video/DPKUikWX0AAcP66.mp4))

ЦитироватьEutelsat all-electric EUTELSAT 172B satellite set to transform connectivity landscape in Asia-Pacific
Press Release (http://news.eutelsat.com/pressreleases)   •   Nov 21, 2017 13:49 CET

(https://img.novosti-kosmonavtiki.ru/326100.bin)
Photo credit : Airbus Defence and Space

New satellite goes live at 172° East, delivering enhanced capacity and new HTS payload for in-flight connectivity

Paris, 21 November 2017 – Eutelsat Communications' (Euronext Paris: ETL) all-electric EUTELSAT 172B satellite that went into full commercial service this morning is now offering greatly enhanced flexibility, power and connectivity for users in a vast region stretching from the West coast of the Americas to Asia, Oceania and across the Pacific.

The transfer of services to EUTELSAT 172B from EUTELSAT 172A was completed seamlessly in a series of overnight manoeuvres, releasing EUTELSAT 172A for an alternative orbital position to serve customers in the Asia-Pacific region.

Спойлер

Launched in June this year, EUTELSAT 172B sets a new benchmark as the fastest satellite to reach geostationary orbit using electric propulsion (in only four months) and the first optimised for in-flight connectivity across the Pacific. Its innovative High Throughput payload, consisting of 11 spotbeams, will transform efficiency by enabling power to be dynamically allocated as aircraft fly high traffic routes in the Asia Pacific region. This step change will allow Panasonic, the major client of the HTS payload, to better meet passenger demand and cost-effectively ensure consistently high levels of service to airlines.

In addition to the HTS payload, EUTELSAT 172B significantly increases regular bandwidth at the 172° East position, with C-band capacity as well as flexible Ku-band capacity spread across five interconnecting Widebeam service areas. Beyond maritime, video, enterprise, cellular backhaul and government services, the Ku-band capacity will serve as an overlay to economically deliver live television to passengers in flight.

Rodolphe Belmer, Eutelsat CEO, said: "As EUTELSAT 172B begins commercial activity that will stretch into the 2030s, this is a key moment to thank the men and women at Eutelsat and our colleagues at Airbus for collaborating passionately on a programme that sets a new industry standard. In addition to taking our 172° East location to a new level of performance for clients in the Asia-Pacific, EUTELSAT 172B further validates the value of electric propulsion for high-capacity satellites that are core to providing cost-competitive services in the telecoms marketplace."

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Цитировать(https://img.novosti-kosmonavtiki.ru/116410.gif) (http://investors.viasat.com/index.cfm)
Dec 5, 2017

ViaSat-2 Satellite Reaches Geostationary Orbit; Successfully Receives and Transmits First Data fr om Space

CARLSBAD, Calif., Dec. 5, 2017 /PRNewswire/ -- Viasat Inc. (http://www.viasat.com/) (NASDAQ: VSAT), a global communications company, announced today the ViaSat-2 satellite has successfully arrived in geostationary orbit at 69.9° west longitude, and has transitioned into orbit normal mode (earth pointing) with its reflector and radiator deployments now complete. The Company also confirmed the ViaSat-2 satellite has commenced in-orbit testing, including the key milestone of the first end-to-end system test, with the ViaSat-2 satellite transmitting and receiving data to and from the new Viasat ground segment.

Спойлер

ViaSat-2 was launched by Arianespace from Kourou, French Guiana, on June 1, 2017. The ViaSat-2 satellite employed a hybrid propulsion approach, using both traditional chemical as well as electric propulsion. The chemical propulsion subsystem was responsible for initial orbit raising and performed according to plan, setting the stage for the follow-on ascent to geostationary orbit using electric propulsion, which was completed last week. Viasat spacecraft partner, Boeing Satellite Systems International, controlled and monitored ViaSat-2 throughout the orbit raising process, flying the satellite from its Mission Control Center in El Segundo, California.

Following completion of the in-orbit tests, the ViaSat-2 satellite is scheduled to enter commercial service in February 2018, wh ere it will enable the delivery of advanced residential, enterprise, government and in-flight internet services.

Successful Data Transmission from Space
Within days of reaching its geostationary orbit, the Viasat team was successfully transmitting data to and from the ViaSat-2 satellite, as well as streaming content providing an early demonstration of the satellite's power and flexibility. Watch the first few moments of contact here (https://www.youtube.com/watch?v=3B9YSbzKJQ4).

"This is a great achievement for the Viasat team, our customers and our partners," said Mark Dankberg, chairman and CEO, Viasat. "The ViaSat-2 system is the culmination of years of hard work and commitment to bringing a satellite platform to market that can deliver truly high-speed, high-quality broadband to many more people, and with a much greater geographic reach. We're another step closer to bringing the ViaSat-2 satellite into service."

[свернуть]

ЦитироватьViasat Affirms Commercial Service Launch for February 2018; Provides Updates on In-Orbit Testing

CARLSBAD, Calif., Jan. 9, 2018 /PRNewswire/ -- Viasat Inc.  (https://www.viasat.com/)(NASDAQ: VSAT), a global communications company, announced today it has begun beta service on the ViaSat-2 satellite, and affirmed plans for full commercial service launch in February 2018. The ViaSat-2 satellite system is expected to significantly improve speeds, reduce costs and expand the footprint of broadband services across North America, Central America, the Caribbean, a portion of northern
South America, as well as the primary aeronautical and maritime routes across the Atlantic Ocean between North America and Europe.

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To-date, Viasat has successfully completed a number of key performance tests on the ViaSat-2 satellite and end-to-end network, including demonstrating downstream speeds of over 100 Mbps to production consumer terminals. The satellite ground network and other networking technologies are performing better than initially planned as measured in successful alpha testing. The satellite will continue to undergo testing during the beta service period, as Boeing has identified an in-orbit antenna issue, which has caused some spot beams to perform differently than they did during ground testing. Boeing, with Viasat's support, is working to determine the root cause of the issue and to identify corrective measures. Based on measured
data and analysis of the current in-orbit performance of the satellite as well as the network as a whole, Viasat believes the issue will not impact the coverage area of the satellite, or materially impact the planned services and the expected financial results from the ViaSat-2 system.

Mark Dankberg, chairman and CEO, Viasat said, "Our advanced ground network, coupled with the flexibility features of the ViaSat-2 satellite, will help us manage the impact from the identified antenna issue if needed. We look forward to launching commercial service next month and bringing new higher-speed fixed and mobile services to market."

The Company will provide an update on the status of the ViaSat-2 service launch plans and ViaSat-1 based market testing of these plans at the next regularly scheduled earnings conference call, planned for early February 2018.
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Цитировать(https://img.novosti-kosmonavtiki.ru/185988.jpg)Peter B. de Selding‏ @pbdes (https://twitter.com/pbdes) 23h ago (https://twitter.com/pbdes/status/961723229223075840)

ViaSat-2 service to start next week, @ViasatInc (https://twitter.com/ViasatInc) CEO Dankberg says. Full-US commercial availability by end of this month, including unlimited plans.

Цитировать(https://img.novosti-kosmonavtiki.ru/185988.jpg)Peter B. de Selding‏ @pbdes (https://twitter.com/pbdes) 23h ago (https://twitter.com/pbdes/status/961729069749387264)

Dankberg said @ViasatInc (https://twitter.com/ViasatInc) and @BoeingDefense (https://twitter.com/BoeingDefense) still studying ViaSat-2 antenna deployment issue; unclear, but could limit downlink to ~ 260 gbps.

22h ago (https://twitter.com/pbdes/status/961732544927481856)

On ViaSat-2 antenna deployment problem, @ViasatInc (https://twitter.com/ViasatInc) apparently considering reversing antenna deployment, then redeploying in hope of fixing problem. Debate is over likelihood of making it worse; talking w/ @BoeingDefense (https://twitter.com/BoeingDefense) , insurers about this.

22h ago (https://twitter.com/pbdes/status/961733271179575296)

Dankberg: We didnt base our business plans on ViaSat-2 perfection w/ @ViasatInc (https://twitter.com/ViasatInc) ViaSat-2; and some ground aspects working better than planned, so we think we can make our original plans despite antenna impairment. Insurers have been notified of issue.

ЦитироватьViasat says ViaSat-2 business plan intact despite antenna glitch
by Caleb Henry (http://spacenews.com/author/caleb-henry/) — February 15, 2018

(https://img.novosti-kosmonavtiki.ru/155709.jpg)
"We didn't base our business plans on perfection. We had margins in there for problems," Mark Dankberg, ViaSat's chairman and CEO, said of ViaSat-2 after discovering a performance-inhibiting antenna problem.

WASHINGTON — Fleet operator Viasat's newest satellite could lose around 15 percent of its intended throughput due to an antenna problem discovered after launch.

Mark Dankberg, Viasat's Chairman and CEO, told investors Feb. 8 that the 6,400-kilogram ViaSat-2 satellite launched in June on an Ariane 5 rocket will likely have a maximum capacity of 260 gigabits per second, rather than 300 Gbps or more as initially hoped.

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Viasat and satellite manufacturer Boeing are continuing to work on solutions to the antenna problem, Dankberg said, but cannot conclude whether any prospective fixes will help or hinder the satellite's performance. Insurers are involved to determine the impact, which could entitle Viasat to a partial-loss claim, he said.

Dankberg said ViaSat-2 will still be a very capable satellite regardless of whether the handicap can be fixed. Other parts of the ViaSat-2 system, like its ground network, are performing better than expected, he said, mitigating the impact of the antenna malfunction.

"We didn't base our business plans on perfection," he said. "We had margins in there for problems."

ViaSat-2 is readying for service now and will be nationwide over the United States by the end of February, he said. Once fully active, the satellite will cover most of North America, along with the Caribbean and a swath of the North Atlantic Ocean out to the United Kingdom.
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Цитировать(https://img.novosti-kosmonavtiki.ru/186278.jpg)Viasat Inc.‏ @ViasatInc (https://twitter.com/ViasatInc) 4 ч. назад (https://twitter.com/ViasatInc/status/968476345872343040)

BREAKING: Viasat Announces Highest-Speed, Unlimited Satellite Internet Service—Nationwide http://bit.ly/2t0Cgna  (https://t.co/wABt0tTEYu) #AccessAmplified (https://twitter.com/hashtag/AccessAmplified?src=hash) #ViasatInc (https://twitter.com/hashtag/ViasatInc?src=hash)
(https://img.novosti-kosmonavtiki.ru/174124.jpg)

Цитировать(https://img.novosti-kosmonavtiki.ru/185903.jpg)Eutelsat‏ @Eutelsat_SA (https://twitter.com/Eutelsat_SA) сейчас10 секунд назад (https://twitter.com/Eutelsat_SA/status/976496254413918210)


Enabling a flexible power management across APAC air routes, Multi-Port Amplifier is at the core of EUTELSAT 172B's innovative design. @PanasonicAero (https://twitter.com/PanasonicAero) and UnicomAirNet endorsed it by selecting this (https://img.novosti-kosmonavtiki.ru/125535.png)'s HTS capacity to deliver #IFEC (https://twitter.com/hashtag/IFEC?src=hash) services in the region