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.
| Names | Ямал-401 Yamal-400 KA-1 |
|---|---|
| Mission type | Communications |
| Operator | Gazprom Space Systems |
| COSPAR ID | 2014-082A |
| SATCAT no. | 40345 |
| Website | https://www.gazprom-spacesystems.ru |
| Mission duration | 15 years (planned) 9 years, 10 months and 12 days (in progress) |
| Spacecraft properties | |
| Spacecraft | Yamal-401 |
| Spacecraft type | Yamal-400 |
| Bus | Ekspress-2000 |
| Manufacturer | ISS Reshetnev (bus) Thales Alenia Space (payload) |
| Launch mass | 2,976 kg (6,561 lb) |
| Power | 10.6 kW |
| Start of mission | |
| Launch date | 15 December 2014, 00:16:00 UTC |
| Rocket | Proton-M / Briz-M |
| Launch site | Baikonur, Site 81/24 |
| Contractor | Khrunichev State Research and Production Space Center |
| Entered service | February 2015 |
| Orbital parameters | |
| Reference system | Geocentric orbit[1] |
| Regime | Geostationary orbit |
| Longitude | 90° East |
| Transponders | |
| Band | 43 transponders: 17 C-band 36 Ku-band |
| Coverage area | Russia |
Development history
editIn 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
editInternational 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
edit
- Yamal – Communication satellite family operated by Gazprom Space Systems
- Gazprom Space Systems – Satellite communication division of the Russian oil giant Gazprom
- Ekspress (satellite bus) – The satellite bus on which Yamal-401 is based
- ISS Reshetnev – The designer and manufacturer of the Yamal-401 satellite's bus
References
edit- ^ "YAMAL 401". N2YO.com. Retrieved 26 April 2021.
- ^ "Infrastructure". Gazprom Space Systems. Retrieved 26 April 2021.
- ^ "Yamal 401". Gunter's Space Page. 11 December 2017. Retrieved 26 April 2021.
- ^ "Yamal 401 (2)". Gunter's Space Page. 11 December 2017. Retrieved 26 April 2021.
External links
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