Mission typeNavigation
COSPAR ID2010-001A Edit this at Wikidata
SATCAT no.36287
Spacecraft properties
Start of mission
Launch date16 January 2010, 16:12:04 (2010-01-16UTC16:12:04Z) UTC
RocketChang Zheng 3C
Launch siteXichang LC-2
Orbital parameters
Reference systemGeocentric
Perigee altitude35,775 kilometres (22,230 mi)
Apogee altitude35,807 kilometres (22,249 mi)
Inclination1.58 degrees
Period23.93 hours
Epoch24 December 2013, 10:17:46 UTC[1]

Compass-G1, also known as Beidou-2 G1, is a Chinese navigation satellite which will become part of the Compass navigation system. It was launched in January 2010, and became the third Compass satellite to be launched after Compass-M1 and Compass-G2.

Compass-G1 was launched at 16:12 GMT on 16 January 2010,[2] and was the first orbital launch to be conducted in 2010.[3] The launch used a Long March 3C carrier rocket, flying from the Xichang Satellite Launch Centre. It was the first flight of a Long March 3 series rocket since an upper stage engine problem in August 2009 which left the Palapa-D satellite in a lower than planned orbit.[4] The injection systems on the rocket's third stage engines had filters fitted to them in an attempt to prevent a recurrence of this failure. The Compass-G1 launch demonstrated this new system.[5]

Compass-G1 had originally been scheduled for launch in the first half of 2009, however it was subsequently delayed after issues developed with the Beidou-1D[6][7] and Compass-G2 satellites.[8]

See also


  1. ^ "BEIDOU G1 Satellite details 2010-001A NORAD 36287". N2YO. 24 December 2013. Retrieved 25 December 2013.
  2. ^ 关于执行"07-38"任务的通知 (in Chinese). 仁怀教育信息网. 2010-01-07. Archived from the original on 2011-07-07. Retrieved 2010-01-13.
  3. ^ McDowell, Jonathan. "Launch Log". Jonathan's Space Page. Retrieved 25 July 2010.
  4. ^ "LM-3B Flight Anomaly Investigation Concluded". China Great Wall Industry Corporation. 2009-12-21. Retrieved 2010-01-13.
  5. ^ de Selding, Peter B. (2009-11-19). "Burn-through Blamed in China Long March Mishap". Space News. Archived from the original on September 10, 2012. Retrieved 2010-01-13.
  6. ^ Cameron, Alan (2009-06-29). "Drifting Beidou Bird a Manufacturing Miss". GPS World. Archived from the original on 2011-07-27. Retrieved 2010-01-13.
  7. ^ Cameron, Alan (2009-08-01). "The System: Compass Awry". Contributor:Langley, Richard B. GPS World. Archived from the original on 2009-08-14. Retrieved 2010-01-13.
  8. ^ Cameron, Alan (2009-12-01). "Beidou Satellite Drifts from Geostationary Orbital Slot". GPS World. Archived from the original on 2011-07-27. Retrieved 2010-01-13.