This is a list of Tracking and Data Relay Satellites. TDRS spacecraft are all in geostationary orbit and are operated by the United States National Aeronautics and Space Administration, and are used for communication between NASA facilities and spacecraft,[1] including the Space Shuttle, Hubble Space Telescope, and International Space Station.
As of 1 March 2019, 12 of the TDRS satellites launched were operational, two (TDRS-3, TDRS-5) had been placed in storage, two (TDRS-1 and TDRS-4) had been retired, and one (TDRS-B) had been lost in a launch failure.[2][3][4]
- ^ "NASA'S Tracking and Data Relay Satellite". NASA Facts Online. December 1992. Archived from the original on 2013-03-05. Retrieved 2009-06-25.
This article incorporates text from this source, which is in the public domain.
- ^ "Northrop Grumman-Built TDRS-1 Satellite Reaches 25 Years of Operational Success and Sets New Standard for Longevity, Reliability". Reuters. 2008-04-07. Archived from the original on 2012-09-07. Retrieved 2009-06-25.
- ^ "TDRS: 25 Years of Connecting Space To Earth". NASA. 2008-05-16. Retrieved 2009-06-25. This article incorporates text from this source, which is in the public domain.
- ^ Cite error: The named reference
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