| 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. |