Yamal-401
NamesЯмал-401
Yamal-400 KA-1
Mission typeCommunications
OperatorGazprom Space Systems
COSPAR ID2014-082A
SATCAT no.40345
Websitehttps://www.gazprom-spacesystems.ru
Mission duration15 years (planned)
9 years and 30 days (in progress)
Spacecraft properties
SpacecraftYamal-401
Spacecraft typeYamal-400
BusEkspress-2000
ManufacturerISS Reshetnev (bus)
Thales Alenia Space (payload)
Launch mass2,976 kg (6,561 lb)
Power10.6 kW
Start of mission
Launch date15 December 2014,
00:16:00 UTC
RocketProton-M / Briz-M
Launch siteBaikonur, Site 81/24
ContractorKhrunichev State Research and Production Space Center
Entered serviceFebruary 2015
Orbital parameters
Reference systemGeocentric orbit[1]
RegimeGeostationary orbit
Longitude90° East
Transponders
Band43 transponders:
17 C-band
36 Ku-band
Coverage areaRussia
 

Yamal-401 (Russian: Ямал-401) is a Russian geostationary communications satellite operated by Gazprom Space Systems. It was built by ISS Reshetnev and is based on the Ekspress-2000 satellite bus. It is equipped with 17 C-band and 36 Ku-band transponders.[2] It has a design life of 15 years.

Development history

In February 2009, Gazprom ordered two Yamal-400 type satellites from Thales Alenia Space. The satellites were named Yamal-401 and Yamal-402. Thales Alenia Space was to be responsible for all aspects of the development and building of the satellites. Both satellites were to be based on Spacebus4000C3 satellite buses.[3]

However, in 2010, Gazprom changed their satellite order so that the Yamal-401 satellite would be developed by ISS Reshetnev and be based on their Ekspress-2000 satellite bus. Thales Alenia Space would deliver the payload for Yamal-401 as originally agreed (also, no changes on the payload side of things). There were no changes with the Yamal-402 satellite, with Thales Alenia developing and building the whole satellite as originally planned.[4]

Originally, both Yamal-401 and Yamal-402 were to be launched by Ariane 5, but the launches were changed to Proton-M launch vehicles.

Launch

International Launch Services (ILS) was contracted to launch Yamal-401, using a Proton-M / Briz-M launch vehicle. The launch took place from Site 81/24 at the Baikonur Cosmodrome, at 00:16:00 UTC on 15 December 2014. The satellite was deployed into the planned geostationary transfer orbit (GTO).

See also

References

  1. "YAMAL 401". N2YO.com. Retrieved 26 April 2021.
  2. "Infrastructure". Gazprom Space Systems. Retrieved 26 April 2021.
  3. "Yamal 401". Gunter's Space Page. 11 December 2017. Retrieved 26 April 2021.
  4. "Yamal 401 (2)". Gunter's Space Page. 11 December 2017. Retrieved 26 April 2021.


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