| Name of Satellite, Alternate Names | Sirius 2 (SD Radio 2) |
| Country of Operator/Owner | USA |
| Operator/Owner | Sirius Satellite Radio |
| Users | Commercial |
| Purpose | Communications |
| Class of Orbit | Elliptical |
| Type of Orbit | |
| Longitude of GEO (degrees) | 0 |
| Perigee (km) | 12849 |
| Apogee (km) | 47048 |
| Eccentricity | 0.470820656139433 |
| Inclination (degrees) | 63.3 |
| Period (minutes) | 1148.43 |
| Launch Mass (kg.) | 3792 |
| Dry Mass (kg.) | 1570 |
| Power (watts) | |
| Date of Launch | 05-09-2000 |
| Expected Lifetime | 15 yrs. |
| Contractor | Space Systems/Loral |
| Country of Contractor | USA |
| Launch Site | Baikonur Cosmodrome |
| Launch Vehicle | Proton K |
| COSPAR Number | 2000-051A |
| NORAD Number | 26483 |
| Comments | Relay music, news, entertainment directly to motorists in the USA. |