Compass-G1
| Mission type | Navigation |
|---|---|
| COSPAR ID | 2010-001A |
| SATCAT no. | 36287 |
| Spacecraft properties | |
| Bus | DFH-3 |
| Manufacturer | CAST |
| Start of mission | |
| Launch date | 16 January 2010, 16:12:04 UTC |
| Rocket | Chang Zheng 3C |
| Launch site | Xichang LC-2 |
| Orbital parameters | |
| Reference system | Geocentric |
| Regime | Geosynchronous |
| Perigee | 35,775 kilometres (22,230 mi) |
| Apogee | 35,807 kilometres (22,249 mi) |
| Inclination | 1.58 degrees |
| Period | 23.93 hours |
| Epoch | 24 December 2013, 10:17:46 UTC |
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, and was the first orbital launch to be conducted in 2010. 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. 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.
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 and Compass-G2 satellites.
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