Intelsat 39, EDRS-C (Hylas 3) - Ariane 5 ECA (VA249) - Kourou ELA-3 - 06.08.2019, 19:30 UTC

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 Geoff Barrett  :f09f9a80:‏ @GeoffdBarrett 5 мин. назад
Just over two days now until the launch of @Arianespace's Ariane 5 rocket carrying Intelsat 39 & EDRS-C/HYLAS 3. #VA249 @ArianeGroup @arianespaceceo #Ariane5 #Intelsat39

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Трансляция пуска на ТыТрубе (на англ. яз.)

youtube.com/watch?v=kQ8HecMG2qs

*Начало трансляции: 18:45 UTC / 21:45 ДМВ
Прим. * - возможно, это ошибка, что начало трансляции за 45 мин до пуска, обычно - за 10-15 мин до...

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Arianespace Flight VA249 – EDRS-C Presentation

 arianespace

Опубликовано: 5 авг. 2019 г.

(5:31)

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Ещё извещения

NOTAM

GLRB

A0039/19 - DNG AREA ZC/VA249 ACT AS FLW
0314N01723W
0124N00235W
0021S00248W
0127N01736W.
GND - UNL, DLY: 1928-2337 UTC, 06 AUG 19:28 2019 UNTIL 14 AUG 23:37 2019.
CREATED: 26 JUL 17:17 2019

NOTMAR

HYDROLANT 2356/2019 (51)

EASTERN NORTH ATLANTIC.
DNC 01.
1. HAZARDOUS OPERATIONS, SPACE DEBRIS
   1928Z TO 2337Z DAILY 06 THRU 21 AUG
   IN AREA BOUND BY
   03-14N 017-23W, 01-24N 002-35W,
   00-21S 002-48W, 01-27N 017-36W.
2. CANCEL THIS MSG 220037Z AUG 19.

( 011354Z AUG 2019 )

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 Stéphane Israël‏ @arianespaceceo 5 мин. назад
#Ariane5 is standing tall in the Spaceport's ELA-3 launch zone, ready for tomorrow's liftoff with two telecommunications satellites: @INTELSAT's Intelsat 39 and EDRS-C (for @AirbusSpace/@ESA). #VA249

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http://www.arianespace.com/mission-update/va249-ariane-5-launch-rollout/

Ariane 5 | August 5, 2019
Ariane 5 is in the launch zone for tomorrow's heavy-lift Arianespace mission


With Intelsat 39 and EDRS-C under its payload fairing, Ariane 5 approaches the launch pad to complete today's rollout.

Arianespace has delivered another Ariane 5 to the launch zone at Europe's Spaceport in French Guiana, positioning this workhorse vehicle for its August 6 liftoff with two telecommunications satellites: Intelsat 39 and EDRS-C.

Riding atop a mobile launch table, Ariane 5 was transferred to the ELA-3 launch zone fr om the Spaceport's Final Assembly Building – wh ere its two passengers were integrated as part of pre-flight preparations.

With the rollout completed, the final countdown will begin for a Tuesday liftoff at the start of a 2-hr., 21-min. launch window opening at 4:30 p.m. local time in French Guiana.

For this 105th flight of an Ariane 5, the payload lift performance to geostationary transfer orbit is approximately 10,661 kg. – a total that factors in Intelsat 39 and EDRS-C, plus the launch vehicle's dual-passenger dispenser system and satellite integration hardware.

Delivering connectivity with Intelsat 39

Intelsat 39 – built by Maxar for global operator Intelsat – is the mission's upper passenger and will be released first in the flight sequence 29 min. after liftoff.

It was designed with both wide and high-powered steerable spot beams to meet the needs of broadband networking, video and government customers across Africa, Asia, Europe, the Middle East and Indian Ocean region. The steerable spot beams provide flexibility within the payload and enable customers to rapidly and efficiently respond to shifts in geographic or application requirements.

The satellite features C-and Ku-band capabilities to provide additional scale for Intelsat's Flex managed service and enhance mobile connectivity for aero, maritime and government users operating across these regions.

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EDRS-C: enhancing the SpaceDataHighway

EDRS-C – to be deployed from Ariane 5's lower passenger position – is the second node of the SpaceDataHighway network, a public-private partnership between Airbus and the European Space Agency. This spacecraft's separation will occur 33 min. after liftoff, completing the August 6 mission.

Permanently fixed over a network of ground stations, the SpaceDataHighway will help improve environmental and security monitoring, disaster response and crisis management. EDRS-C – based on a satellite platform supplied by OHB System – will be able to connect low-orbiting observation satellites via laser at a distance up to 45,000 km., as well as unmanned aerial vehicles or mission aircraft.

EDRS-C also carries a hosted payload – HYLAS 3 – which was provided by Avanti Communications under a contract with ESA as a customer-furnished item to OHB.

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• A larger version of the photo above is available in the Gallery.
  

Launch window for Flight VA249:

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Washington, D.C.

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French Guiana

[/TH][TH]

UTC

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Paris

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From 3:30 p.m. to 5:51 p.m.

[/TD][TD]

From 4:30 p.m. to 6:51 p.m.

[/TD][TD]

From 19:30 to 21:51

[/TD][TD]

From 9:30 p.m. to 11:51 p.m.

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Arianespace TV - VA 249 - Launch Campaign

 arianespace

Опубликовано: 5 авг. 2019 г.

(3:08)

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https://www.militarynews.ru/story.asp?rid=1&nid=514382&lang=RU

Европейская ракета-носитель Ariane 5 стартует на орбиту с двумя спутниками связи
06.08.2019 00:00:00

Париж. 6 августа. ИНТЕРФАКС - Тяжелая ракета-носитель Ariane 5 Европейского космического агентства (ЕSА) в ночь со вторника на среду должна вывести на орбиту два телекоммуникационных спутника, сообщила ее французская компания-разработчик Arianespace.

Для старта ракеты с космодрома "Куру" во Французской Гвиане запланировано временное "окно" с 22:30 мск во вторник до 00:51 мск в среду.

По сообщению компании, Ariane 5 выведет на орбиту спутники Intelsat 39 оператора связи Intelsat и EDRS-C ЕКА и компании Airbus.

Спойлер

Старт ракеты с европейскими спутниками первоначально планировался 24 июля, однако он был отложен в связи с неудачным пуском легкой французской ракеты-носителя Vega с разведывательным спутником Falcon Eye 1 (оптико-электронным спутником дистанционного зондирования Земли) Объединенных Арабских Эмиратов. Примерно через две минуты после старта ракета Vega из-за сбоя в работе двигателей второй ступени отклонилась от заданной траектории и упала в Атлантический океан.

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По имеющимся данным, спутник Intelsat 39, оснащенный передатчиками C- и Ku- диапазонов, который будет размещен на 62-м градусе восточной долготы, предназначен для обеспечения широкополосного доступа в интернет и спутникового телевещания в Африке, Европе, на Ближнем Востоке и в Азии. Аппарат заменит исчерпавший свой ресурс Intelsat 902, выведенный на орбиту Земли в 2001 году.

Что касается спутника EDRS-C, то он станет вторым составным элементом первой системы оптической космической связи в Европе SpaceDataHighway. Ее разработчиком выступает аэрокосмическая компания Airbus Defence and Space. Система предназначена для оптической передачи данных с использованием лазерного терминала. Система EDRS может передавать примерно около 50 терабайт данных ежедневно со скоростью до 1,8 гигабит в секунду.

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 Intelsat‏ @INTELSAT 19 ч. назад
It's almost time for the #launch of #Intelsat39, slated for liftoff at 3:30 pm ET tomorrow, August 6. Join us as we tune in to the live broadcast with @Arianespace: http://www.arianespace.com/mission/ariane-flight-va249/ ...

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 Arianespace‏ @Arianespace 7 мин. назад
#VA249 upper passenger: Intelsat 39 is a powerful platform that will enable mobile network operators, enterprises and internet service providers to deliver faster and more efficient connectivity services. #VA249 @INTELSAT @Maxar




5 мин. назад
#VA249 lower passenger: EDRS-C is the second node of #SpaceDataHighway, the world's first "optical fiber" network in the sky based on cutting-edge laser technology. @AirbusSpace @ESA @OHB_SE

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https://spaceflightnow.com/2019/08/06/second-node-ready-to-join-european-laser-relay-network/

Second node ready to join European laser relay network
August 6, 2019 | Stephen Clark


The EDRS C spacecraft undergoes testing at an Airbus Defense and Space facility. Credit: ESA – S. Corvaja

A German-built satellite designed to relay data between other orbiting spacecraft and ground stations using laser beams is set for launch in tandem with an Intelsat communications craft Tuesday fr om Kourou, French Guiana, aboard an Ariane 5 rocket.

The second node in the European Data Relay Satellite, or EDRS, network is set for launch at 1930 GMT (3:30 p.m. EDT) Tuesday from the Guiana Space Center. The spacecraft, named EDRS C, will ride into orbit with the Intelsat 39 commercial communications satellite.

EDRS C will join the EDRS A node in geostationary orbit more than 22,000 miles (nearly 36,000 kilometers) over the equator. EDRS A is a hosted laser relay package on the commercial Eutelsat 9B communications satellite, which launched in 2016.

The EDRS network relays data and imagery from satellites in lower orbits, including the European Sentinel Earth observation fleet.

The EDRS system is similar to NASA's Tracking and Data Relay Satellite, or TDRS, network, which began operations in the 1980s to close communications coverage gaps for spacecraft passing between ground stations. But unlike the U.S. system, the European data relay satellites carry laser communications links to enable super-fast transfers of information and imagery.

The EDRS network can transmit up to 40 terabytes of data per day, at a rate of 1.8 gigabits per second.

The European Commission's Sentinel 1A, 1B, 2A and 2B Earth-imaging satellites are the anchor users of the European data relay system, which was developed in a public-private partnership between the European Space Agency and Airbus.

A new European laser terminal will launch to the International Space Station on a SpaceX resupply ship next year to be attached outside the station's Columbus module. The arrival of the laser system will enable the EDRS network to connect with the space station, opening the door for faster data links for experiments hosted on the orbiting research complex.

Спойлер

Artist's concept of the European Data Relay System. Credit: ESA

Airbus owns and operates the EDRS nodes in orbit, and sells access to the network — which it calls the "SpaceDataHighway" — on the commercial market. The EDRS control center is located in Ottobrunn, Germany.

"ESA is investing a chunk of money, and Airbus is putting some money on the table as well," said Michael Witting, ESA's EDRS project manager. "The logic behind it is ESA has covered most of the technical risks in the development phase, and Airbus has invested money, and they, in a sense, cover the market risk."

Airbus's four high-resolution Pléiades Neo optical reconnaissance satellites — the first two of which could launch in 2020 — will also link up with the EDRS network to transmit Earth imagery to the ground at high data rates.

Airbus announced earlier this year a cooperation agreement the SKY Perfect JSAT, a Japanese communications satellite operator, to co-finance design and development studies for a third EDRS node over the Asia-Pacific for launch before 2025.

The 7,023-pound (3,186-kilogram) EDRS C spacecraft was built by OHB in Bremen, Germany. The 14,550-pound (6.6-metric ton) Intelsat 39 communications satellite will join EDRS for the ride into space Tuesday.

An Ariane 5 rocket, operated by the French company Arianespace, will lift the two satellites into a highly elliptical, equatorial geostationary transfer orbit stretching 22,236 miles (35,786 kilometers) above Earth about a half-hour after liftoff.

The launch window for the Ariane 5 rocket extends until 2151 GMT (5:51 p.m. EDT) Tuesday.

Arianespace delayed the Ariane 5 mission from July 24 to clear the launcher of any faults related to the failure of a European Vega rocket July 10. The Vega rocket is a light-class launch vehicle — much smaller than the Ariane 5 — but the Avio, the Vega's prime contractor in Italy, also supplies components for the Ariane 5's two solid rocket boosters.


The Ariane 5 rocket arrived at the ELA-3 launch zone in French Guiana on Monday after rollout from the final assembly building. Credit: ESA/CNES/Arianespace – Photo Optique Video du CSG – L. Rouesne

During a launch readiness review Friday, Arianespace officials approved the mission for launch Tuesday. The Ariane 5 rolled out of its final assembly building Monday at the spaceport in South America for the 1.7-mile (2.7-kilometer) trip to the ELA-3 launch zone along dual rail tracks.

Countdown preps began early Tuesday, and Arianespace teams will oversee the loading of super-cold liquid hydrogen and liquid oxygen into the two-stage Ariane 5 in the final hours before liftoff.

The mission launching Tuesday will mark the 105th flight of an Ariane 5 rocket since 1996, and the third Ariane 5 flight this year.

The Ariane 5 launcher will deploy the Intelsat 39 spacecraft, which is riding in the upper position inside the rocket's fairing, at Plus+29 minutes, 9 seconds. After jettisoning a Sylda dual-payload adapter, the Ariane 5's upper stage will release the EDRS C satellite at Plus+33 minutes, 31 seconds.

The two payloads will use their own engines to maneuver from the Ariane 5's elliptical drop-off orbit into a circular geostationary orbit, wh ere their movement around Earth will match the rate of the planet's rotation.

Built by Maxar Technologies, Intelsat 39 will park itself over the equator at 62 degrees east longitude to begin a 15-year mission providing C-band and Ku-band services across Asia, Africa, the Middle East and Europe.

Intelsat 39 will replace the aging Intelsat 902 satellite at the 62 degrees east orbital location. Intelsat 902 launched on top of an Ariane 4 rocket from French Guiana in 2001.


The Intelsat 39 satellite during fueling at the Guiana Space Center. Credit: ESA/CNES/Arianespace – Photo Optique Video du CSG – JM Guillon

Officials said Intelsat 39 will provide video and broadband services from its perch high above the equator. The new Intelsat spacecraft will also provide connectivity for airplanes and ships traveling in the Indian Ocean region.

Myanmar's Ministry of Transport and Communications will be one of the main users of Intelsat 39's capacity. Intelsat announced last year the the ministry signed a multi-year, multi-transponder agreement to use Intelsat 39 to provide broadband Internet services to government agencies, businesses and communities throughout Myanmar.

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https://spaceflightnow.com/2019/08/06/ariane-5-va249-mission-status-center/

08/06/2019 21:10 Stephen Clark

Minus-80 minutes. Today's mission is numbered VA249 in Arianespace's flight sequence. It's the 249th launch of an Ariane rocket since 1979, and the 105th flight of an Ariane 5 since its debut in 1996.

Liftoff is set for 1930 GMT (3:30 p.m. EDT; 4:30 p.m. French Guiana time).

The Intelsat 39 spacecraft, designed for video and broadband services across Africa, Europe and Asia,, is riding in the upper berth of the Ariane 5's payload fairing today. The EDRS C data relay satellite for Airbus and the European Space Agency will be in the lower position inside the fairing

The 14,550-pound Intelsat 39 satellite was assembled by Maxar in Palo Alto, California, and will use a hydrazine-fueled main engine to conduct most of the maneuvers necessary to reach a perch at geostationary altitude over the equator some 22,000 miles (36,000 kilometers) over the equator at 62 degrees east longitude following today's launch.

Intelsat 39 also carries electric thrusters to conduct the final maneuvers to reach geostationary orbit.

The EDRS C satellite, owned by Airbus and built by OHB, will head to a geostationary position at 31 degrees east longitude, where it will activate a laser relay system to link satellites in low Earth orbit with ground stations. The new spacecraft will join the European Data Relay System network, which supports Europe's Sentinel environmental satellite fleet, and will provide high-speed laser data links with the International Space Station beginning next year.

The EDRS C satellite also hosts a Ka-band communications payload named Hylas 3 for the British company Avanti. EDRS C's main propulsion is provided a liquid-fueled chemical rocket engine.

The EDRS C satellite will launch in the lower berth of the Ariane 5's dual-payload accommodation. Once the Intelsat 39 satellite deploys from the rocket, a Sylda adapter structure will jettison to reveal the roughly 7,023-pound (3,186-kilogram) EDRS C spacecraft for release.

Спойлер

The final countdown commenced at 0807 GMT (4:07 a.m. EDT), with clocks at the Guiana Space Center timed for a targeted liftoff at 1930 GMT (3:30 p.m. EDT; 4:30 p.m. French Guiana time). The launch window extends for 2 hours, 21 minutes.

Electrical systems checks on the Ariane 5 began at 0857 GMT (4:57 a.m. EDT).

Workers have also put finishing touches on the launch pad, including the closure of doors, removal of safety barriers and configuring fluid lines for fueling. The flight program for today's launch was also be loaded into the rocket's computer.

The launch team began the process to fuel the rocket with super-cold liquid hydrogen and liquid oxygen propellants around 1452 GMT (10:52 a.m. EDT). First, ground reservoirs and the rocket's helium tank were pressurized, then the fuel lines will be chilled down to condition the plumbing for the flow of super-cold liquid hydrogen and liquid oxygen, which are stored at approximately minus 423 degrees Fahrenheit and minus 298 degrees Fahrenheit, respectively.

It was expected to take approximately two hours to fill the Ariane 5 core stage tanks.

A similar procedure for the Ariane 5's cryogenic upper stage commenced at 1602 GMT (12:02 p.m. EDT).

Chilldown conditioning of the Vulcain 2 first stage engine was scheduled to occur at 1612 GMT (12:12 p.m. EDT), and a communications check between the rocket and ground telemetry, tracking and command systems is scheduled for 1815 GMT (2:15 p.m. EDT).

A final weather briefing will come at T-minus 10 minues, and then the computer-controlled synchronized countdown sequence will begin seven minutes before launch to pressurize propellant tanks, switch to on-board power and take the rocket's guidance system to flight mode.

The Vulcain 2 engine will ignite as the countdown clock reaches zero, followed by a health check and ignition of the Ariane 5's solid rocket boosters seven seconds later to send the 1.7 million-pound launcher skyward.

Five seconds after blastoff, the rocket will begin pitching east from the ELA-3 launch pad, surpassing the speed of sound less than a minute into the mission. The Ariane 5's twin solid rocket boosters will jettison nearly two-and-a-half minutes after liftoff.

Once above the dense atmosphere, the launcher's payload fairing will fall away at an altitude of more than 70 miles — about 112 kilometers -- at Plus+3 minutes, 17 seconds. The Ariane 5's first stage will shut down 8 minutes, 32 seconds, after liftoff, followed moments later by stage separation and ignition of the hydrogen-fueled cryogenic HM7B upper stage engine.

The rocket's upper stage will fire more than 16 minutes, accelerating to a velocity of 21,000 mph, or more than 9.3 kilometers per second, to reach an orbit with a planned high point of 35,756 kilometers (22,218 miles), a targeted low point of 250 kilometers (155 miles) and an inclination of 4.5 degrees.

The release of the Intelsat 29 satellite will come first at Plus+29 minutes, 9 seconds.

Once Intelsat 39 is deployed, the Ariane 5 rocket's barrel-shaped Sylda 5 dual-payload adapter will be jettisoned at Plus+31 minutes, 6 seconds.

EDRS C will separate from the lower portion of the payload stack at 33 minutes, 31 seconds.

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08/06/2019 21:22 Stephen Clark

Minus-70 minutes. The Ariane 5's first and second stages are now being loaded with cryogenic liquid hydrogen and liquid oxygen propellants.

The 17.7-foot-diameter first stage's Vulcain 2 engine burns 149.5 metric tons, or about 329,000 pounds, of liquid oxygen and 25 metric tons, or about 55,000 pounds, of liquid hydrogen. The cryogenic upper stage's HM7B engine consumes about 14.7 metric tons, or more than 32,000 pounds, of oxygen and hydrogen.

The fluids are stored at super-cold temperatures and naturally boil off in the warm tropical atmosphere in French Guiana. More propellant is slowly pumped into the rocket for most of the countdown to replenish the cryogenic fuel.

The topping sequence ends in the final few minutes of the countdown as the fuel tanks are pressurized and the fueling system is secured.

Спойлер

Built by a consortium of European contractors led by Ariane Group's facility in Vernon, France, the Vulcain 2 engine generates up to 300,000 pounds of thrust during its 9-minute firing. It burns about 320 kilograms, or 705 pounds, of liquid oxygen and liquid hydrogen propellant per second.

The engine's nozzle has an exit diameter of 2.1 meters, or about 6.9 feet. It weighs more than 4,600 pounds and its liquid oxygen and liquid hydrogen turbopumps spin at 12,300 rpm and 35,800 rpm, respectively.

The Vulcain 2 replaced the Vulcain engine used on the initial version of the Ariane 5. The newer engine produces 20 percent more thrust.

The Ariane 5's upper stage is powered by an HM7B engine, a modified version of the HM7 engine used on the upper stage of the Ariane 4 rocket. The 364-pound HM7B engine is manufactured by Ariane Group in Ottobrunn, Germany.

The HM7B engine produces more than 14,500 pounds of thrust in vacuum.

The Ariane 5 configuration with a Vulcain 2 engine and HM7B-powered cryogenic upper stage is known as the Ariane 5 ECA.

The Ariane 5's twin solid rocket boosters are packed with propellant near the launch site in French Guiana before they are assembled and positioned on each side of the cryogenic core stage.

With the rocket now fully fueled for launch, the vehicle weighs 1.7 million pounds. At liftoff, the rocket produces 2.9 million pounds of thrust.

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08/06/2019 21:55 Stephen Clark

Minus-35 minutes. The Ariane 5 is now fully fueled with cryogenic liquid hydrogen and liquid oxygen propellants.

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08/06/2019 22:02 Stephen Clark

Minus-28 minutes. Some statistics on today's flight:

[/li]
• 249th launch of an Ariane rocket since 1979
  
• 312th Arianespace mission
  
• 105th launch of an Ariane 5 rocket since 1996
  
• 61st Intelsat satellite launched by Arianespace
  
• 132nd satellite for Airbus launched by Arianespace
  
• 57th Maxar/SSL-built satellite launched by Arianespace
  
• 26th OHB-built satellite launched by Arianespace
  
• 72nd launch of an Ariane 5 ECA rocket since 2002
  
• 80th flight of a Vulcain 2 engine
  
• 104th flight of an HM7B engine
  
• 90th Ariane 5 launch targeting GTO
  
• 7th launch from the Guiana Space Center in 2019
  
• 3rd Ariane 5 launch in 2019
  

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