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BD-3 M (Type 2)

BD-3M 3S [CAS]

BD 3M (Beidou 3M) satellites are the MEO component of the 3rd 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 intermediate constellation called "Compass-M" in 12-hours orbits. Ulitmately, the MEO constellation will comprise 27 satellites.

These class of intermediate orbit satellites is similar as the BD-3 I (Type 1) satellites also built by CAS. As they have no apogee propulsion system, they require the launch vehicle to perform the final orbit insertion.

The third phase MEO satellites can be launched as single stellites on a CZ-3C/YZ1 with additional dispenser stage, two at a time on a CZ-3B/YZ1 with additional dispenser stage or four at a time on a CZ-5 with additional dispenser stage.

Nation: China
Type / Application: Navigation
Operator:
Contractors: CAS
Equipment: ?
Configuration:
Propulsion:
Power: 2 deployable solar arrays, batteries
Lifetime: 12 years
Mass: 1060 kg
Orbit: 21519 km × 21545 km, 55.26
Satellite COSPAR Date LS Launch Vehicle Remarks
BD-3 M3-S (Beidou 21) 2016-006A 01.02.2016 Xi LC-2 CZ-3C/YZ1
BD-3 M7 (Beidou 26) 2018-003A 11.01.2018 Xi LC-2 CZ-3B/YZ1 with BD-3 M8
BD-3 M8 (Beidou 27) 2018-003B 11.01.2018 Xi LC-2 CZ-3B/YZ1 with BD-3 M7
BD-3 M9 (Beidou 30) 2018-029A 29.03.2018 Xi LC-2 CZ-3B/YZ1 with BD-3 M10
BD-3 M10 (Beidou 31) 2018-029B 29.03.2018 Xi LC-2 CZ-3B/YZ1 with BD-3 M9
BD-3 M11 (Beidou 35) 2018-067A 25.08.2018 Xi CZ-3B/YZ1 with BD-3 M12
BD-3 M12 (Beidou 36) 2018-067B 25.08.2018 Xi CZ-3B/YZ1 with BD-3 M11
BD-3 M15 (Beidou 39) - 2018 Xi CZ-3B/YZ1 with BD-3 M16
BD-3 M16 (Beidou 40) - 2018 Xi CZ-3B/YZ1 with BD-3 M15