2009-018A
On Apr 14 China launched the second "second generation" ('erdai') Beidou navigation satellite, COMPASS-G2 or 'er ke Beidou Daohang Weixing' using the CZ-3C (Chang Zheng sanhao bing) launch vehicle. The satellite was initially placed in geostationary transfer orbit; by Apr 29 it was apparently station in geostationary orbit, with no intermediate tracking available. However, the satellite appears never to have made stationkeeping maneuvers and slowly drifted off station. On 2010 Sep 8 its orbital period was adjusted to move it further out of synchroncity.
The first four Beidou were called 'Beidou Daohang Shiyan Weixing', or Beidou Navigation Test Satellite; the most recent two are the operational 'Beidou Daohang Weixing'.
| Beidou DW2 | |||
| Date | Time | Event | Orbit |
|---|---|---|---|
| 2009 Apr 14 | 1616 | Launch by CZ-3C | XSC |
| T+2:07? Booster sep | |||
| T+2:27? St 1 sep | |||
| T+3:52? Fairing sep | |||
| T+5:32? St 2 sep | |||
| T+5:32? St 3 MES-1 | |||
| 1626 | T+10:31? MECO-1 | 210? x 450? x 28.5? | |
| 1637? | T+21:21? MES-2 | ||
| 1640? | T+24:20? MECO-2 | ||
| 1642? | Stage 3 sep | ||
| 2009 Apr 14 | 632.51 209 x 35850 x 20.54 | ||
| 2009 Apr 15 | 632.63 209 x 35856 x 20.53 | ||
| 2009 Apr 29 | 1436.08 35774 x 35798 x 1.0 GEO 84.6E | ||
| 2009 Jun 11 | 1436.19 35777 x 35799 x 0.8 GEO 84.2E+0.03W/d | ||
| 2010 Jan 20 | 1436.38 35772 x 35812 x 0.3 GEO 68.2E+0.2W/d | ||
| 2010 Jul 5 | 1435.80 35722 x 35838 x 0.1 GEO 65.8E+0.1E/d | ||
| 2010 Sep 2 | 1435.72 35671 x 35887 x 0.3 GEO 71.0E | ||
| 2010 Sep 8 | Move out, drift | ||
| 2011 Mar 3 | 1435.63 35579 x 35975 x 0.7 GEO 120.6E | ||
| 2011 Apr 28 | 1436.06 35593 x 35978 x 0.8 GEO 124.8E | ||
| 2011 May | Move out, drift | ||
| 2012 Nov 13 | 1435.84 35538 x 36024 x 2.1 GEO 21.6E | ||
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