TDRS-5
TDRS-E aboard Atlantis during deployment | |
| Mission type | Communication |
|---|---|
| Operator | NASA |
| COSPAR ID | 1991-054B |
| SATCAT no. | 21639 |
| Mission duration | Planned: 10 years Elapsed: 33 years, 10 months, 18 days |
| Spacecraft properties | |
| Bus | TDRS |
| Manufacturer | TRW |
| Launch mass | 2,108 kg (4,647 lb) |
| Dimensions | 17.3 × 14.2 m (57 × 47 ft) |
| Power | 1700 watts |
| Start of mission | |
| Launch date | 2 August 1991, 15:01:59 UTC |
| Rocket | Space Shuttle Atlantis STS-43 / IUS |
| Launch site | Kennedy Space Center, LC-39A |
| Contractor | Rockwell International |
| Orbital parameters | |
| Reference system | Geocentric orbit |
| Regime | Geostationary orbit |
| Longitude | 174° West (1991–) |
| Epoch | 3 August 1991 |
TDRS-5, known before launch as TDRS-E, is an American communications satellite, of first generation, which is operated by NASA as part of the Tracking and Data Relay Satellite System. It was constructed by TRW is based on a custom satellite bus which was used for all seven first generation TDRS satellites.