Name of Satellite, Alternate Names |
Milstar DFS-4 (USA 157, Milstar 2-F2) (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) |
-67.9 |
Perigee (km) |
35764 |
Apogee (km) |
35768 |
Eccentricity |
4.74653502942852E-05 |
Inclination (degrees) |
4.5 |
Period (minutes) |
1435.04 |
Launch Mass (kg.) |
4536 |
Dry Mass (kg.) |
|
Power (watts) |
8000 |
Date of Launch |
27-02-2001 |
Expected Lifetime |
12 yrs. |
Contractor |
Lockheed Martin Missiles and Space |
Country of Contractor |
USA |
Launch Site |
Cape Canaveral |
Launch Vehicle |
Titan 4B |
COSPAR Number |
2001-009A |
NORAD Number |
26715 |
Comments |
Voice communication, data, imagery and video; survivable global military communication system. "World´s most secure, nuclear survivable, space-based communication system." |