| Name of Satellite, Alternate Names | Milstar DFS-1 (USA 99, Milstar 1-F1) (Military Strategic and Tactical Relay) |
| Country of Operator/Owner | USA |
| Operator/Owner | US Air Force |
| Users | Military |
| Purpose | Communications |
| Class of Orbit | GEO |
| Type of Orbit | |
| Longitude of GEO (degrees) | -38.9 |
| Perigee (km) | 35754 |
| Apogee (km) | 35819 |
| Eccentricity | 0.000770936866200942 |
| Inclination (degrees) | 5.99 |
| Period (minutes) | 1436.13 |
| Launch Mass (kg.) | 4536 |
| Dry Mass (kg.) | |
| Power (watts) | 8000 |
| Date of Launch | 07-02-1994 |
| Expected Lifetime | 10 yrs. |
| Contractor | Lockheed Martin Missiles and Space |
| Country of Contractor | USA |
| Launch Site | Cape Canaveral |
| Launch Vehicle | Titan 4A |
| COSPAR Number | 1994-009A |
| NORAD Number | 22988 |
| Comments | Voice communication, data, imagery and video; survivable global military communication system. "World´s most secure, nuclear survivable, space-based communication system." |