Yamal-300 KA-3
Mission typeCommunications
OperatorGazprom Space Systems
COSPAR ID2012-061B Edit this at Wikidata
SATCAT no.38978
Mission duration14 years (planned)
9 years, 10 months and 4 days (in progress)
Spacecraft properties
Spacecraft typeYamal-300
ManufacturerISS Reshetnev (bus)
Thales Alenia Space (payload)
Launch mass1,870 kg (4,120 lb)
Power5.6 kW
Start of mission
Launch date2 November 2012, 21:04:00 UTC
RocketProton-M / Briz-M
Launch siteBaikonur, Site 81/23
ContractorKhrunichev State Research and Production Space Center
Entered serviceJanuary 2013
Orbital parameters
Reference systemGeocentric orbit
RegimeGeostationary orbit
Longitude90° East (2012-2020)
183° East (2020-present)
Band26 transponders:
8 C-band
18 Ku-band
Bandwidth72 MHz
Coverage areaRussia

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]


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]


As of 12 May 2020, it is still in service, but has been moved to 183° East (177° West).[6][5][4]

See also


  1. ^ "Yamal communication satellites". RussiaSpaceWeb.com. 21 April 2016. Retrieved 20 July 2016.
  2. ^ Pillet, Nicolas. "Yamal / Histoire / La deuxième génération" [Yamal / History / The second generation]. Kosmonavtika (in French). Retrieved 20 July 2016.
  3. ^ Pillet, Nicolas. "Les Yamal-300" [The Yamal-300] (in French). Kosmonavtika. Retrieved 20 July 2016.
  4. ^ a b "Yamal 300k". SatBeams. Retrieved 26 April 2021.
  5. ^ a b c "Yamal-300K". Gunter's Space Page. 11 December 2017. Retrieved 26 April 2021.
  6. ^ a b "Yamal-300K 183E". Gazprom Space Systems. Retrieved 20 July 2016.
  7. ^ Pillet, Nicolas. "Proton-M 2 novembre 2012" [Proton-M November 2, 2012] (in French). Kosmonavtika. Retrieved 20 July 2016.
  8. ^ "Yamal 300K". RussiaSpaceWeb.com. 21 April 2016. Retrieved 20 July 2016.