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BD-2 M / BD-2 I
BD-2 M1 [CAST]
BD 2M (Beidou 2M) and BD 2I (Beidou 2I) satellites are the MEO and IGSO component of the 2rd phase of the chinese Beidou (Compass) satellite navigation system, which, in contrast to GPS and GLONASS, uses both geostationary satellites and satellites in intermediate orbit.
This series provides the satellites for the inclined geostatonary (IGSO) constellation called "Compass-I" and the prototypes for the intermediate constellation called "Compass-M" in 12-hours orbits.
The satellites are based on the DFH-3 Bus. They feature a phased array antenna for navigation signals and a laser retroreflector.
The global MEO satellites are built on a different, smaller satellite bus.
| Nation: | China |
|---|---|
| Type / Application: | Navigation |
| Operator: | CNSA |
| Contractors: | CAST |
| Equipment: | ? |
| Configuration: | DFH-3 Bus |
| Propulsion: | 490 N |
| Power: | 2 deployable solar arrays, batteries |
| Lifetime: | 8 years |
| Mass: | |
| Orbit: | 21519 km × 21545 km, 55.26° (#M); 35652 × 35959 km, 55° (#I) |
| Satellite | COSPAR | Date | LS | Launch Vehicle | Remarks | |
|---|---|---|---|---|---|---|
| BD-2 I1 (Beidou 5) | 2010-036A | 31.07.2010 | Xi LC-3 | CZ-3A | ||
| BD-2 I2 (Beidou 7) | 2010-068A | 17.12.2010 | Xi LC-3 | CZ-3A | ||
| BD-2 I3 (Beidou 8) | 2011-013A | 09.04.2011 | Xi LC-3 | CZ-3A | ||
| BD-2 I4 (Beidou 9) | 2011-038A | 26.07.2011 | Xi LC-3 | CZ-3A | ||
| BD-2 I5 (Beidou 10) | 2011-073A | 01.12.2011 | Xi LC-3 | CZ-3A | ||
| BD-2 I6 (Beidou 22) | 2016-021A | 29.03.2016 | Xi LC-2 | CZ-3A | ||
| BD-2 I7 (Beidou 32) | 2018-057A | 09.07.2018 | Xi LC-2 | CZ-3A | ||
| BD-2 M1 (Beidou 1) | 2007-011A | 13.04.2007 | Xi LC-3 | CZ-3A | ||
| BD-2 M2 (Beidou 14) | 2012-050A | 18.09.2012 | Xi LC-2 | CZ-3B/G1 | with BD-2 M5 | |
| BD-2 M3 (Beidou 12) | 2012-018A | 29.04.2012 | Xi LC-2 | CZ-3B/G1 | with BD-2 M4 | |
| BD-2 M4 (Beidou 13) | 2012-018B | 29.04.2012 | Xi LC-2 | CZ-3B/G1 | with BD-2 M3 | |
| BD-2 M5 (Beidou 15) | 2012-050B | 18.09.2012 | Xi LC-2 | CZ-3B/G1 | with BD-2 M2 |
Further BD (Beidou) missions:
- BD 1 [DFH-3 Bus]
- BD 2G 1, ..., 6 [DFH-3 Bus]
- BD 2M 1, ..., 5 / BD 2I 1, ..., 6 [DFH-3 Bus]
- BD 3G 1, ..., 5 [DFH-3B Bus]
- BD 3I (Type 1) 1
- BD 3I (Type 2) 2
- BD 3M (Type 1) 1, 2
- BD 3M (Type 2) 3
