Yamal-400 KA-1
Mission typeCommunications
OperatorGazprom Space Systems
COSPAR ID2014-082A
SATCAT no.40345
Mission duration15 years (planned)
6 years, 4 months and 25 days (in progress)
Spacecraft properties
Spacecraft typeYamal-400
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
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 name 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.


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


  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.

External links

  • Gazprom Space Systems Yamal-401
  • ISS Reshetnev Yamal-401