STS-51J
From The Space Library
 | |
| Organization | NASA-Office of Space Flight (United States) |
|---|---|
| Mission type | Human Crew |
| Launch date | October 3, 1985 |
| Launch vehicle | Space Shuttle |
| Launch site | Cape Canaveral, United States |
| COSPAR ID | 1985-092A |
| Inclination | 28.5 degrees |
| Experiments | Here |
| Alternate Names | STS 21,16115 |
| Additional Information | Here |
| Data Collection | Here |
| Payload Mass Up | Classified kg |
| Payload Mass Down | Classified kg |
| Orbiter | Atlantis |
| Lift Off Mass | Classified kg |
| Orbiter Weight at Liftoff | Classified kg |
| Orbiter Weight at Landing | Classified kg |
| Landed | Runway 23 dry lake bed at Edwards Air Force Base, Calif. |
| Orbits of Earth | 63 |
| Orbital Altitude | 278 nautical miles (319 statute miles) |
Contents |
Crew
- Commander: Karol J. Bobko
- Pilot: Ronald J. Grabe
- Mission Specialist 1: David C. Hilmers
- Mission Specialist 2: Robert L. Stewart
- Payload Specialist 2: Major William A. Pailes
Mission
STS 51-J was the first flight of the shuttle Atlantis. On board were Karol Bobko, Ronald Grabe, Robert Stewart, David Hilmers, and William Pailes. This was a US Department of Defense mission to launch two Defense Satellite Communications System (DSCS) satellites as part of a US military satellite constellation placed in geosynchronous orbit to provide high-volume, secure voice and data communications.
Payload
DOD
Mission patch: 
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