HS4-SGS1 (Hellas-Sat-4, SaudiGeoSat-1), GSAT-31 - Ariane 5 ECA (VA247) - Kourou ELA-3 - 05.02.2019

Автор tnt22, 07.01.2019 19:32:16

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tnt22

https://www.isro.gov.in/update/06-feb-2019/india%E2%80%99s-communication-satellite-gsat-31-launched-successfully-french-guiana
ЦитатаFeb 06, 2019
India's communication satellite GSAT-31 launched successfully from French Guiana

India's latest communication satellite, GSAT-31 was successfully launched from the Spaceport in French Guiana during the early hours today.

The launch vehicle Ariane 5 VA-247 lifted off from Kourou Launch Base, French Guiana at 2:31 am (IST) carrying India's GSAT-31 and Saudi Geostationary Satellite 1/Hellas Sat 4 satellites, as scheduled.

After a 42-min flight, GSAT-31 separated from the Ariane 5 upper stage in an elliptical Geosynchronous Transfer Orbit with a perigee (nearest point to Earth) of 250 km and an apogee (farthest point to Earth) of 35,850 km, inclined at an angle of 3.0 degree to the equator.

With a lift-off mass of 2536 kg, GSAT-31 will augment the Ku-band transponder capacity in Geostationary Orbit. The satellite will provide continuity to operational services on some of the in-orbit satellites. GSAT-31 derives its heritage from ISRO's earlier INSAT/GSAT satellite series.

"GSAT-31 has a unique configuration of providing flexible frequency segments and flexible coverage. The satellite will provide communication services to Indian mainland and islands" ISRO Chairman Dr K Sivan said.

Dr. Sivan also remarked that "GSAT-31 will provide DTH Television Services, connectivity to VSATs for ATM, Stock-exchange, Digital Satellite News Gathering (DSNG) and e-governance applications. The satellite will also be used for bulk data transfer for a host of emerging telecommunication applications."

After separation from Ariane-5 upper stage, the two solar arrays of GSAT-31 were automatically deployed in quick succession and ISRO's Master Control Facility at Hassan in Karnataka took over the command and control of GSAT-31 and found its health parameters normal.

In the days ahead, scientists will undertake phase-wise orbit-raising manoeuvres to place the satellite in Geostationary Orbit (36,000 km above the equator) using its on-board propulsion system.

During the final stages of its orbit raising operations, the antenna reflector of GSAT-31 will be deployed. Following this, the satellite will be put in its final orbital configuration. The satellite will be operational after the successful completion of all in-orbit tests.

India's communication satellite GSAT-31 launched successfully from French Guiana


tnt22

ЦитатаArianespace Flight VA247 - Successful Ariane 5 Launch

arianespace

Опубликовано: 5 февр. 2019 г.

ARIANESPACE ORBITS TWO TELECOMMUNICATIONS SATELLITES ON FIRST ARIANE 5 LAUNCH OF 2019

Arianespace has successfully orbited two telecommunications satellites: the Saudi Geostationary Satellite 1/Hellas Sat 4 condosat for operators KACST and Hellas Sat; and GSAT-31 for the Indian Space Research Organisation (ISRO). Arianespace's first launch of the year took place on Tuesday, February 5 at 6:01 pm (local time) from the Guiana Space Center (CSG), Europe's Spaceport in French Guiana (South America).
 Скрытый текст:
Today's launch was the 103rd Ariane 5 mission, bringing the number of geostationary satellites launched by Arianespace to 374.

Following the announcement of this first successful launch of the year, Stéphane Israël, Chief Executive Officer of Arianespace, said: "This year we kick off the 40th anniversary celebration of the first launch of Europe's Ariane rocket with a successful launch of Ariane 5. Through this emblematic flight, Arianespace underscores the reliability of our heavy launcher, the benchmark in the launch segment for geostationary telecommunications satellites.

By carrying out a mission for long-lasting customers from three continents - Arabsat, KACST, Hellas Sat and ISRO - we continue to prove the attractiveness of Arianespace's launch services for customers from around the world, both institutional and commercial."

Supporting telecommunications on three continents

The Saudi Geostationary Satellite 1/Hellas Sat 4 (also called HS- 4/SGS-1) satellite comprises two payloads, with coverage zones encompassing Europe, the Middle East and South Africa:

- Saudi Geostationary Satellite 1 will provide advanced communications services for Saudi Arabia's KACST (King Abdulaziz City for Science and Technology), as well as secure communications for countries belonging to the Gulf Cooperative Council region.

- Hellas Sat 4 will provide advanced regional communications services for Arabsat's subsidiary, Hellas Sat, the Greek-Cypriot satellite operator.

After launching GSAT-11 for ISRO on the final Ariane 5 mission of 2018, Arianespace has now orbited GSAT-31 on its first mission in 2019. With GSAT-31, ISRO continues to develop its space infrastructure to reduce the digital divide in India. The next ISRO geostationary satellite to be launched by Arianespace will be GSAT-30.

Arianespace confirms its leadership in the geostationary launch market

This first Ariane 5 mission of the year placed two satellites in geostationary transfer orbit. Arianespace confirmed its business momentum and leadership in the geostationary telecommunications satellite market during 2018 by signing launch contracts for eight more satellites, bringing the total number of geostationary telecommunications satellites in its backlog of launch orders to 26.

Up to five Ariane 5 dual launches are planned in 2019, to orbit a total of 10 geostationary satellites.
https://www.youtube.com/watch?v=Oov--sL72fchttps://www.youtube.com/watch?v=Oov--sL72fc (2:04)

tnt22

ЦитатаArianespace TV - VA247 Official Speeches

arianespace

Опубликовано: 5 февр. 2019 г.

ARIANESPACE ORBITS TWO TELECOMMUNICATIONS SATELLITES ON FIRST ARIANE 5 LAUNCH OF 2019
https://www.youtube.com/watch?v=xF5bQgr4CuYhttps://www.youtube.com/watch?v=xF5bQgr4CuY (13:28)

tnt22

http://www.arianespace.com/mission-update/ariane-5-va247-success/
ЦитатаAriane 5 | February 5, 2019
A dual-passenger success: Ariane 5 delivers on Arianespace's first launch of the year



Arianespace opened its 2019 mission activity by successfully orbiting a pair of telecommunications spacecraft - Saudi Geostationary Satellite 1/Hellas Sat 4 (HS-4/SGS-1) and GSAT-31 - using the company's workhorse Ariane 5 launch vehicle.

Today's flight to geostationary orbit, performed from the Spaceport in French Guiana, delivered a payload lift performance estimated at 10,018 kg. - which included the two spacecraft, along with the dispenser system and integration hardware in Ariane 5's dual-passenger configuration.

Arianespace CEO Stéphane Israël confirmed the success in post-launch comments from the Spaceport's Jupiter control room. "For the first Ariane 5 launch of the year, our heavyweight vehicle has once more performed flawlessly," he said. "Congratulations to all!"

"Condosat" capabilities
Deployed first in the flight sequence 27 minutes after liftoff, HS-4/SGS-1 is a geostationary "condosat" for Saudi Arabia's King Abdulaziz City for Science and Technology (KACST) and Greek-Cypriot satellite operator Hellas Sat, an Arabsat subsidiary. Designed, assembled and integrated by Lockheed Martin Space, HS-4/SGS-1 will operate from an orbital position of 39 deg. East, with a coverage area that includes Europe, South Africa and the Middle East.

The Arianespace CEO acknowledged the direct customer for HS-4/SGS-1, Arabsat, and called this 11th Arianespace mission at the service of the Riyadh, Saudi Arabia-based telecommunications operator a "new bright success."

The Saudi Geostationary Satellite 1 communications payload will provide advanced Ka-band spot beam communications services for KACST, a government organization responsible for promoting science and technology in Saudi Arabia. The Hellas Sat 4 communications payload will deliver advanced Ku-band regional beam communications services for the Arabsat subsidiary.

23 launches and counting for ISRO
GSAT-31 was carried in Ariane 5's lower payload position and released second in the sequence for today's mission, which is designated Flight VA247 in Arianespace's numbering system - representing the 247th launch of an Ariane-series launch vehicle.


Flight VA247 was performed by an Ariane 5 ECA version.

The spacecraft was designed and manufactured by the Indian Space Research Organisation (ISRO) and will provide Ku-band communications services from an orbital slot at 48 deg. East, helping "bridge the digital divide" with coverage across the Indian subcontinent.

Israël noted that GSAT-31 was the 23rd ISRO satellite orbited by Arianespace and Ariane-series launchers, tracing the relationship back to India's APPLE small experimental communications spacecraft, lofted in 1981 by an Ariane 1 version. He added: "Arianespace is honored ISRO has entrusted Ariane 5 for two launches back-to-back, with the last Ariane 5 of 2018 launching GSAT-11, and today the first one of the year 2019, which orbited GSAT-31!"

With today's success, Arianespace kicks off a busy launch schedule in 2019 - which targets up to 12 missions from the Spaceport with the heavyweight Ariane 5, medium-lift Soyuz and lightweight Vega.
    [/li]
  • Read the press release on Arianespace's launch of HS-4/SGS-1 and GSAT-31.
  • High-resolution photos from Flight VA247 are available in the Gallery.

tnt22

http://www.arianespace.com/press-release/arianespace-orbits-two-telecommunications-satellites-on-first-ariane-5-launch-of-2019/
ЦитатаAriane 5 | February 5, 2019
Arianespace orbits two telecommunications satellites on first Ariane 5 launch of 2019



Arianespace has successfully orbited two telecommunications satellites: the Saudi Geostationary Satellite 1/Hellas Sat 4 condosat for operators KACST and Hellas Sat; and GSAT-31 for the Indian Space Research Organisation (ISRO).

Arianespace's first launch of the year took place on Tuesday, February 5 at 6:01 p.m. (local time) from the Guiana Space Center (CSG), Europe's Spaceport in French Guiana (South America).

Today's launch was the 103rd Ariane 5 mission, bringing the number of geostationary satellites launched by Arianespace to 374.

Following the announcement of this first successful launch of the year, Stéphane Israël, Chief Executive Officer of Arianespace, said: "This year we kick off the 40th anniversary celebration of the first launch of Europe's Ariane rocket with a successful launch of Ariane 5. Through this emblematic flight, Arianespace underscores the reliability of our heavy launcher, the benchmark in the launch segment for geostationary telecommunications satellites. By carrying out a mission for long-lasting customers from three continents - Arabsat, KACST, Hellas Sat and ISRO - we continue to prove the attractiveness of Arianespace's launch services for customers from around the world, both institutional and commercial."

Supporting telecommunications on three continents


The Saudi Geostationary Satellite 1/Hellas Sat 4 (also called HS-4/SGS-1) satellite comprises two payloads, with coverage zones encompassing Europe, the Middle East and South Africa:
- Saudi Geostationary Satellite 1 will provide advanced communications services for Saudi Arabia's KACST (King Abdulaziz City for Science and Technology), as well as secure communications for countries belonging to the Gulf Cooperative Council region.
- Hellas Sat 4 will provide advanced regional communications services for Arabsat's subsidiary, Hellas Sat, the Greek-Cypriot satellite operator.

After launching GSAT-11 for ISRO on the final Ariane 5 mission of 2018, Arianespace has now orbited GSAT-31 on its first mission in 2019.

With GSAT-31, ISRO continues to develop its space infrastructure to reduce the digital divide in India. The next ISRO geostationary satellite to be launched by Arianespace will be GSAT-30.

Arianespace confirms its leadership in the geostationary launch market
This first Ariane 5 mission of the year placed two satellites in geostationary transfer orbit. Arianespace confirmed its business momentum and leadership in the geostationary telecommunications satellite market during 2018 by signing launch contracts for eight more satellites, bringing the total number of geostationary telecommunications satellites in its backlog of launch orders to 26.

Up to five Ariane 5 dual launches are planned in 2019, to orbit a total of 10 geostationary satellites.

tnt22

ЦитатаArianespace Flight VA247 - Saudi Geostationary Satellite 1/Hellas Sat 4 & GSAT-31 (EN)

arianespace

Опубликовано: 5 февр. 2019 г.

ARIANESPACE ORBITS TWO TELECOMMUNICATIONS SATELLITES ON FIRST ARIANE 5 LAUNCH OF 2019
https://www.youtube.com/watch?v=UO3x1L-VZ2ghttps://www.youtube.com/watch?v=UO3x1L-VZ2g (1:25:10)

tnt22


tnt22

https://www.isro.gov.in/update/07-feb-2019/first-orbit-raising-manoeuver-of-gsat-31-satellite-has-been-successfully-carried
ЦитатаFeb 07, 2019
The first orbit raising manoeuver of GSAT-31 satellite has been successfully carried out today (February 7, 2019) at 0438 hrs (IST) by firing the Liquid Apogee Motor (LAM) engine of the satellite for a duration of 4684 seconds.
The Orbital parameters after this Apogee Motor firing are:
    [/li]
  • Apogee (Farthest point from Earth) x Perigee (Nearest point from earth): 35,792 km x 15,485 km
  • Inclination: 0.8 deg

tnt22

2 объекта запуска (полезная нагрузка) идентифицированы

tnt22

https://www.isro.gov.in/update/09-feb-2019/after-injection-of-gsat-31-communication-satellite-elliptical-geosynchronous
ЦитатаFeb 09, 2019
After the injection of GSAT-31 communication satellite into an elliptical Geosynchronous Transfer Orbit (GTO) on February 06, 2019, all the three orbit raising manoeuvers have been completed successfully as planned using the satellite's propulsion system.
The satellite antennas have been deployed and the satellite is placed in an orbit with a perigee (nearest point from Earth) of 35,548 km and an apogee (farthest point from Earth) of 35,778 km with an inclination of 0.13 deg which is very close to its operational orbit.

tnt22

Старт. Замедленная съёмка.
ЦитатаVA247 - Décollage d'Ariane 5 le 05/02/2019

CNES CSG

Опубликовано: 7 февр. 2019 г.
https://www.youtube.com/watch?v=YEaZhGIhfzghttps://www.youtube.com/watch?v=YEaZhGIhfzg (1:36)

tnt22


tnt22

Цитата Rick Ambrose‏ @RAmbroseLMSpace 6 ч. назад
We just handed over all operations of the Hellas Sat-4/SaudiGeoSat-1 to our customer, enabling their advanced secure telecommunications. This is the second in-orbit delivery of the new @LockheedMartin LM 2100 satellite series.