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
- Country
- United States
- Operator
- NASA
- Follows
- TDRS-3
- Mass
- 2108
- Manufacturer
- TRW Inc.
- Image
- TDRS-4 and Earth through the bay door2 (cropped).jpg
- Width
- 14.2
- Length
- 17.3
Show 7 more facts
- UTC date of spacecraft launch
- 1989-03-13
- start point
- Kennedy Space Center Launch Complex 39B
- space launch vehicle
- Space Shuttle
- Commons category
- TDRS-D
- type of orbit
- geosynchronous orbit
- nominal power output
- 1700
- space tug
- Inertial Upper Stage
Sources (3)
via Wikidata · CC0
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Encyclopedic overview
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.
Excerpted from Wikipedia’s “TDRS-4” article, available under the CC BY-SA 4.0 licence.