Yamal 101

Yamal 101 (Russian: Ямал-101) was a geostationary communications satellite operated by Gazkom and built by RSC Energia.[1] It was, along with Yamal 102 the first communications satellite of the Yamal program and the first iteration of the USP Bus.[2][3] It was a 1,360 kg (3,000 lb) satellite with 2200W of power (1300W available for the payload) on an unpressurized bus.[4] It had eight SPT-70 electric thrusters by OKB Fakel for station keeping.[5] Its payload was 12 C band equivalent transponders supplied by Space Systems Loral.[6]

Yamal 101 (Ямал-101)
Mission typeCommunication
OperatorGazprom Space Systems
COSPAR ID1999-047B
SATCAT no.25897
Mission durationFailed after launch
Spacecraft properties
SpacecraftYamal 101
Spacecraft typeYamal 100
BusUSP Bus
ManufacturerRSC Energia (bus)
Space Systems/Loral (payload)
Launch mass1,360 kg (3,000 lb)
Power2200
Start of mission
Launch date16:36:00, September 6, 1999 (UTC) (1999-09-06T16:36:00Z)
RocketProton-K/Blok-DM-2M
Launch siteBaikonur Site 81/23
End of mission
DisposalFailed after launch
Last contactSeptember 6, 1999
Orbital parameters
Reference systemGEO
Longitude49°E
Transponders
Frequency12 C band
 

History

It was launched along Yamal 102 September 6, 1999 at 16:36 UTC from Baikonur Site 81/23 by a Proton-K/Blok-DM-2M directly to GEO.[7][8] But a failure in the electrical system at solar panel deployment meant that it was lost right after the successful launch.[9][1]

Rename of Yamal 102

After Yamal 101 failure, Gazkom registered Yamal 102 as Yamal 101. This has caused significant confusion but the records are clear that the satellite that failed was, in fact, the original Yamal 101.[9][10]

See also
  • Yamal 102 – Twin satellite that was launched together and ended up commissioned into service with the Yamal 101 registration.
  • 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 101 is based.
  • RSC Energia – The designer and manufacturer of the Yamal 101 satellite.

References
  1. Zak, Anatoly (April 21, 2016). "Yamal communication satellites". RussiaSpaceWeb.com. Retrieved 2016-07-20.
  2. Pillet, Nicolas. "Yamal/Historie/Nécessité de renouvellement" [Yamal/History/The necessity of renewal]. Kosmonavtika (in French). Retrieved 2016-07-20.
  3. Pillet, Nicolas. "Yamal/Historie/La plate-forme universelle" [Yamal/History/The universal platform]. Kosmonavtika (in French). Retrieved 2016-07-20.
  4. "Universal Space Platform". RSC Energia. 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-100" [Yamal-100 technical description]. Kosmonavtika (in French). Retrieved 2016-07-20.
  7. Pillet, Nicolas. "Proton-K 6 septembre 1999" [September 6, 1999 Proton-K]. Kosmonavtika (in French). Retrieved 2016-07-20.
  8. Krebs, Gunter Dirk (2016-04-17). "Yamal 101, 102". Gunter's Space Page. Retrieved 2016-07-20.
  9. Pillet, Nicolas. "Yamal/Historie/Premier tir, premier revers" [Yamal/History/The first setbacks]. Kosmonavtika (in French). Retrieved 2016-07-20.
  10. "Yamal 101". Satbeams. Retrieved 20 July 2016.
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