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Yamal 203

Yamal 203 (Ямал-203)
Mission typeCommunication
OperatorGazprom Space Systems
Mission durationCancelled before launch
Spacecraft properties
SpacecraftYamal 203
Spacecraft typeYamal 200
BusUSP Bus
ManufacturerRSC Energia (bus)
Alcatel Space (payload)
Launch mass1,351 kg (2,978 lb)
Power3400
Orbital parameters
Reference systemGEO
Longitude90°E
Transponders
Frequency9 C band
6 Ku band

Yamal 203 (Russian: Ямал-203) was a geostationary communications satellite ordered by Gazkom to RSC Energia.[1] It was to be a twin of Yamal 201 and was supposed to ride along with Yamal 204 on what would have been the third launch of the Yamal program. As a copy of Yamal 201, it would be the second iteration of the USP Bus.[2][3] It would have been a 1,351 kg (2,978 lb) satellite with 4,080W of power (3.4 kW at end of life) on an unpressurized bus.[4] It would have had eight SPT-70 electric thrusters by OKB Fakel for station keeping.[5] Its payload was 9 C band and 6 Ku band transponders to be supplied by Space Systems Loral.[6][7]

History

During 1997, even before the launch of their first satellites (Yamal 101 and Yamal 102), Gazkom was planning the second generation. At that time they planned 24 satellites of the second generation. This extremely aggressive plan was scaled back by 2001 with a plan to launch four 200 series satellites. The first two, Yamal 201 and Yamal 202 would be launched by 2001 and the second pair, Yamal 203 and Yamal 204 by 2004.

Yamal 201 and Yamal 203 would be identical and be positioned at the 90°E slot and Yamal 202 and Yamal 204 would also be twins and be positioned at the 49°E slot. But the program was delayed and while Yamal 201 and Yamal 202 actually launched on November 24, 2003, Gazkom moved to the Yamal 301 and Yamal 302 project, cancelling both Yamal 203 and Yamal 204.[8][9][2][3]

See also

  • Yamal 201 – A twin satellite that was actually launched.
  • Yamal – Communication satellite family operated by Gazprom Space Systems.
  • Gazprom Space Systems – Satellite communication division of the Russian oil giant Gazprom.
  • USP Bus – The satellite bus on which Yamal 203 is based.
  • RSC Energia – The designer of the Yamal 203 satellite.

References

  1. ^ Zak, Anatoly (April 21, 2016). "Yamal communication satellites". RussiaSpaceWeb.com. Retrieved 2016-07-20.
  2. ^ a b Pillet, Nicolas. "Yamal/Historie/Premier tir, premier revers" [Yamal/History/The first setbacks]. Kosmonavtika (in French). Archived from the original on 2016-08-19. Retrieved 2016-07-20.
  3. ^ a b Pillet, Nicolas. "Yamal/Historie/La deuxième génération" [Yamal/History/The second generation]. Kosmonavtika (in French). Archived from the original on 2016-08-19. Retrieved 2016-07-20.
  4. ^ "Universal Space Platform". RSC Energia. Archived from the original on 2016-06-17. Retrieved 2016-07-20.
  5. ^ Krebs, Gunter Dirk (2015-10-16). "RKK Energiya: USP (Victoria)". Gunter's Space Page. Retrieved 2016-07-20.
  6. ^ Pillet, Nicolas. "Descriptif technique Yamal-200" [Yamal-200 technical description]. Kosmonavtika (in French). Retrieved 2016-07-20.
  7. ^ "Yamal 201". Satbeams. Retrieved 20 July 2016.
  8. ^ Pillet, Nicolas. "Proton-K 24 novembre 2003" [November 24, 2003 Proton-K]. Kosmonavtika (in French). Retrieved 2016-07-20.
  9. ^ Krebs, Gunter Dirk (2016-04-17). "Yamal 201, 203". Gunter's Space Page. Retrieved 2016-07-20.
Quelle: https://en.wikipedia.org/wiki/Yamal-203