Yamal 101

Yamal-101 (Russian: Ямал-101) was a geostationary communications satellite operated by Gazprom Space Systems and built by RSC Energia.[1] It was, along with Yamal-102 the first communications satellite of the Yamal programme and the first iteration of the USP Bus.[2][3] It was a 1,360 kg (3,000 lb) satellite with 2200 watts of power (1300 watts 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
NamesЯмал-101
Yamal-100 KA-1
Mission typeCommunications
OperatorGazprom Space Systems
COSPAR ID1999-047A
SATCAT no.25896
Websitehttps://www.gazprom-spacesystems.ru
Mission duration12 years (planned)
Failed on orbit
Spacecraft properties
SpacecraftYamal-101
Spacecraft typeYamal-100
BusUSP Bus
ManufacturerRSC Energia (bus)
Space Systems/Loral (payload)
Launch mass1,360 kg (3,000 lb)
Power2200 watts
Start of mission
Launch date6 September 1999,
16:36:00 UTC
RocketProton-K / Blok DM-2M
Launch siteBaikonur, Site 81/23
ContractorKhrunichev State Research and Production Space Center
Entered serviceFailed on orbit
End of mission
Last contact6 September 1999
Orbital parameters
Reference systemGeocentric orbit
RegimeGeostationary orbit
Longitude49° East (planned)
Transponders
Band12 C-band
Coverage areaRussia
 

History

It was launched along Yamal-102, on 6 September 1999 at 16:36:00 UTC from Baikonur Site 81/23 by a Proton-K / Blok DM-2M directly to geostationary orbit.[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, Gazprom Space Systems 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] Insurance paid US$50 million for the failure.[11]

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. "Yamal communication satellites". RussiaSpaceWeb.com. 21 April 2016. Retrieved 20 July 2016.
  2. Pillet, Nicolas. "Yamal / Histoire / Nécessité de renouvellement" [Yamal / History / The necessity of renewal] (in French). Kosmonavtika. Archived from the original on 19 August 2016. Retrieved 20 July 2016.
  3. Pillet, Nicolas. "Yamal / Histoire / La plate-forme universelle" [Yamal / History / The universal platform] (in French). Kosmonavtika. Archived from the original on 19 August 2016. Retrieved 20 July 2016.
  4. "Universal Space Platform". RSC Energia. Archived from the original on 17 June 2016. Retrieved 20 July 2016.
  5. "RKK Energiya: USP (Victoria)". Gunter's Space Page. 16 October 2015. Retrieved 20 July 2016.
  6. Pillet, Nicolas. "Descriptif technique Yamal-100" [Yamal-100 technical description] (in French). Kosmonavtika. Retrieved 20 July 2016.
  7. Pillet, Nicolas. "Proton-K 6 septembre 1999" [September 6, 1999 Proton-K] (in French). Kosmonavtika. Retrieved 20 July 2016.
  8. Krebs, Gunter (17 April 2016). "Yamal 101, 102". Gunter's Space Page. Retrieved 20 July 2016.
  9. Pillet, Nicolas. "Yamal / Histoire / Premier tir, premier revers" [Yamal / History / The first setbacks] (in French). Kosmonavtika. Archived from the original on 19 August 2016. Retrieved 20 July 2016.
  10. "Yamal-101". SatBeams. Retrieved 25 April 2021.
  11. "Yamal-101". TBS. 28 February 2021. Retrieved 25 April 2021.
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