TDRS-4
Sign in to saveAlso known as TDRS-D, Tracking and Data Relay Satellite 4, Tracking and Data Relay Satellite D
TDRS-4, known before launch as TDRS-D, is an American communications satellite, of first generation, 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.
Wikidata facts
- Mass
- 2108
- Image
- TDRS-4 and Earth through the bay door2 (cropped).jpg
- Width
- 14.2
- Length
- 17.3
Show 3 more facts
- UTC date of spacecraft launch
- 1989-03-13
- Commons category
- TDRS-D
- nominal power output
- 1700
Sources (3)
via Wikidata · CC0
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Article
5 sectionsContents
- History
- Deployment
- Retirement
- See also
- References
TDRS-4, known before launch as TDRS-D, is an American communications satellite, of first generation, 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.
==History== left|thumb|150px|The launch of STS-29 carrying TDRS-D.