| Name of Satellite, Alternate Names | XM Radio 3 (Rhythm) |
| Country of Operator/Owner | USA |
| Operator/Owner | XM Satellite Radio USA |
| Users | Commercial |
| Purpose | Communications |
| Class of Orbit | GEO |
| Type of Orbit | |
| Longitude of GEO (degrees) | -85.04 |
| Perigee (km) | 35782 |
| Apogee (km) | 35790 |
| Eccentricity | 9.48856627763545E-05 |
| Inclination (degrees) | 0.01 |
| Period (minutes) | 1436.1 |
| Launch Mass (kg.) | 4703 |
| Dry Mass (kg.) | |
| Power (watts) | 18000 |
| Date of Launch | 01-03-2005 |
| Expected Lifetime | 15 yrs. |
| Contractor | Boeing Satellite Systems |
| Country of Contractor | USA |
| Launch Site | Sea Launch (Odyssey) |
| Launch Vehicle | Zenit 3SL |
| COSPAR Number | 2005-008A |
| NORAD Number | 28626 |
| Comments | 130 channels of digital music uplinked in the X-band from one or more ground stations. |