Summary
Yamal-300K (Russian: Ямал-300К) is a geostationary communications satellite operated by Gazprom Space Systems and built by ISS Reshetnev on the Ekspress-1000 satellite bus.[1] It was the first switch of satellite supplier in Yamal programme after Gazprom had disagreements on the schedule and cost of Yamal-301 and Yamal-302 with RSC Energia.[2][3] It is a 1,870 kg (4,120 lb) satellite with 5.6 kW of power on an unpressurized bus designed for direct geostationary orbit injection with 14 years of design life. Its payload was supplied by Thales Alenia Space and is composed of 8 x 72 MHz C-band and 18 x 72 MHz Ku-band transponders for a 36 MHz equivalent of 52 transponders.[4][5] Its transmitted power is 110 watts in C-band and 140 watts in Ku-band.[6]
| Names | Ямал-300К Yamal-300 KA-3 |
|---|---|
| Mission type | Communications |
| Operator | Gazprom Space Systems |
| COSPAR ID | 2012-061B |
| SATCAT no. | 38978 |
| Website | https://www.gazprom-spacesystems.ru |
| Mission duration | 14 years (planned) 11 years, 5 months and 20 days (in progress) |
| Spacecraft properties | |
| Spacecraft | Yamal-300K |
| Spacecraft type | Yamal-300 |
| Bus | Ekspress-1000 |
| Manufacturer | ISS Reshetnev (bus) Thales Alenia Space (payload) |
| Launch mass | 1,870 kg (4,120 lb) |
| Power | 5.6 kW |
| Start of mission | |
| Launch date | 2 November 2012, 21:04:00 UTC |
| Rocket | Proton-M / Briz-M |
| Launch site | Baikonur, Site 81/23 |
| Contractor | Khrunichev State Research and Production Space Center |
| Entered service | January 2013 |
| Orbital parameters | |
| Reference system | Geocentric orbit |
| Regime | Geostationary orbit |
| Longitude | 90° East (2012-2020) 183° East (2020-present) |
| Transponders | |
| Band | 26 transponders: 8 C-band 18 Ku-band |
| Bandwidth | 72 MHz |
| Coverage area | Russia |
Launch edit
Yamal-300K was launched along Luch 5B on 2 November 2012 at 21:04:00 UTC from Baikonur Site 81/23 by a Proton-M / Briz-M directly to geostationary orbit.[7] The launch and satellite deployment was successful and Yamal-300K was commissioned into service.[5][8]
Mission edit
As of 12 May 2020, it is still in service, but has been moved to 183° East (177° West).[6][5][4]
See also edit
- Luch 5B – Satellite that was launched together with Yamal-300K
- 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-300K is based
- ISS Reshetnev – The designer and manufacturer of the Yamal-300K satellite
References edit
- ^ "Yamal communication satellites". RussiaSpaceWeb.com. 21 April 2016. Retrieved 20 July 2016.
- ^ a b "Yamal 300k". SatBeams. Retrieved 26 April 2021.
- ^ a b c "Yamal-300K". Gunter's Space Page. 11 December 2017. Retrieved 26 April 2021.
- ^ a b "Yamal-300K 183E". Gazprom Space Systems. Retrieved 20 July 2016.
- ^ "Yamal 300K". RussiaSpaceWeb.com. 21 April 2016. Retrieved 20 July 2016.
External links edit
- Gazkom Yamal-300K technical performance
- ISS Reshetnev Yamal-300K page