TDRS-4
| Use attributes for filter ! | |
| Inclination | 10. 15° |
|---|---|
| Launch date | March 13, 1989 |
| Manufacturers | TRW Inc. |
| Disposal | Decommissioned |
| Rocket | Space Shuttle Discovery |
| Date of Reg. | |
| Date of Upd. | |
| ID | 2025655 |
About TDRS-4
TDRS-4, known before launch as TDRS-D, is an American communications satellite which was operated by NASA as part of the Tracking and Data Relay Satellite System from 1989 until 2011. It was constructed by TRW, based on a custom satellite bus which was used for all seven of the first generation TDRS satellites.
