Satellite Compass M1 (Beidou M1) of Chinese Defense Ministry

Name of Satellite, Alternate Names Compass M1 (Beidou M1)
Country of Operator/Owner China (PR)
Operator/Owner Chinese Defense Ministry
Users Military
Purpose Navigation/Global Positioning
Class of Orbit MEO
Type of Orbit
Longitude of GEO (degrees) 0
Perigee (km) 21519
Apogee (km) 21545
Eccentricity 0.000465916421761881
Inclination (degrees) 55.26
Period (minutes) 773.39
Launch Mass (kg.) 2200
Dry Mass (kg.)
Power (watts)
Date of Launch 14-04-2007
Expected Lifetime 8 yrs.
Contractor Space Technology Research Institute (part of CASC)
Country of Contractor China (PR)
Launch Site Xichang Satellite Launch Center
Launch Vehicle Long March 3A
COSPAR Number 2007-011A
NORAD Number 31115
Comments Part of Compass constellation; first one in MEO orbit.


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