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Beidou 3M23

NSSDCA/COSPAR ID: 2019-061A

Description

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. Ultimately, the MEO constellation will comprise 27 satellites.

The 3rd phase intermediate orbit satellites are based on an dedicated bus, not on the DFH-3 Bus as the earlier BD-2M satellites. They feature a phased array antenna for navigation signals and a laser retro reflector. As they have no apogee propulsion system, they require the launch vehicle to perform the final orbit insertion.

Alternate Names

    Facts in Brief

    Launch Date: 2019-09-22
    Launch Vehicle: Long March 3B
    Launch Site: Xichang, Peoples Republic of China

    Funding Agency

    • Unknown (Peoples Republic of China)

    Discipline

    • Navigation/Global Positioning

    Additional Information

    Questions and comments about this spacecraft can be directed to: Coordinated Request and User Support Office

     
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