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BD 1A, 1B, 1C, 1D


The BD 1 (Beidou 1) satellites were the 1st phase of the chinese Beidou (Compass) satellite navigation system. The first phase uses only geostationary satellites, in contrast to GPS and GLONASS. This reduces the number of satellites, but limits the coverage to a less than hemispherical area. The basic constellation requires 3 satellites. The satellites are based on the DFH-3 Bus.

The fourth satellite failed shortly after launch but was later reported to have been finally activated and entered service.

Nation: China
Type / Application: Navigation
Operator: CNSA
Contractors: CAST
Equipment: ?
Configuration: DFH-3 Bus
Propulsion: FY-25 ?
Power: 2 deployable solar arrays, batteries
Lifetime: 5 years
Mass: 2200 kg
Orbit: GEO
Satellite COSPAR Date LS Launch Vehicle Remarks
BD 1A 2000-069A 30.10.2000 Xi LC-2 CZ-3A
BD 1B 2000-082A 20.12.2000 Xi LC-2 CZ-3A
BD 1C 2003-021A 24.05.2003 Xi LC-2 CZ-3A
BD 1D 2007-003A 02.02.2007 Xi LC-2 CZ-3A

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