List of TDRS satellites

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This is a list of Tracking and Data Relay Satellites. TDRS spacecraft 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 5 February 2014, seven of the TDRS satellites launched were operational, one (TDRS-L) had not yet entered service, one (TDRS-3) had been retired, two (TDRS-1 and TDRS-4) had been retired, and one (TDRS-B) had been lost in a launch failure.[2][3]


Designation Launch (UTC) Rocket Launch Site Longitude Status Retirement Remarks
Launch Operational

First generation[edit]

TDRS-A TDRS-1 4 April 1983
Space Shuttle Challenger/IUS
Kennedy LC-39A 41°W, 62°W, 171°W Retired 27 June 2010[6] IUS malfunctioned, raised orbit using maneuvering thrusters. End of life October 2009[7]
TDRS-B N/A 28 January 1986
Space Shuttle Challenger/IUS
Kennedy LC-39B N/A Destroyed 28 January 1986
Launch failure
Shuttle disintegrated during ascent
TDRS-C TDRS-3 29 September 1988
Space Shuttle Discovery/IUS
Kennedy LC-39B In storage[8] December 2011[9]
TDRS-D TDRS-4 13 March 1989
Space Shuttle Discovery/IUS
Kennedy LC-39B Retired April/May 2012[10]
TDRS-E TDRS-5 2 August 1991
Space Shuttle Atlantis/IUS
Kennedy LC-39A Active,
as of 2009
TDRS-F TDRS-6 13 January 1993
Space Shuttle Endeavour/IUS
Kennedy LC-39B Active,
as of 2009
TDRS-G TDRS-7 13 July 1995
Space Shuttle Discovery/IUS
Kennedy LC-39B Active,
as of 2009
Replaced TDRS-B

Second generation[edit]

TDRS-H TDRS-8 30 June 2000
Atlas IIA Canaveral SLC-36A 171°W Active
TDRS-I TDRS-9 8 March 2002
Atlas IIA Canaveral SLC-36A Active
TDRS-J TDRS-10 5 December 2002
Atlas IIA Canaveral SLC-36A Active

Third generation[edit]

TDRS-K TDRS-11 31 January 2013
Atlas V 401 Canaveral SLC-41 171°W Active USD$350 million cost, paid to Boeing under a firm-fixed price (FFP) contract.[11]
TDRS-L TDRS-L 24 January 2014
Atlas V 401 Canaveral SLC-41 Active USD$350 million cost, FFP contract.[11]
TDRS-M Planned Atlas V[11]EELV Canaveral USD$289 million firm-fixed-price contract option with Boeing; option exercised in November 2011, ahead of expiry on 30 Nov 2012.[11]
TDRS-N Planned EELV Canaveral Option


  1. ^ "NASA'S Tracking and Data Relay Satellite". NASA Facts Online. December 1992. Retrieved 2009-06-25. 
  2. ^ "Northrop Grumman-Built TDRS-1 Satellite Reaches 25 Years of Operational Success and Sets New Standard for Longevity, Reliability". Reuters. 2008-04-07. Retrieved 2009-06-25. 
  3. ^ "TDRS: 25 Years of Connecting Space To Earth". NASA. 2008-05-16. Retrieved 2009-06-25. 
  4. ^ a b c d e f g h i j McDowell, Jonathan. "Launch Log". Jonathan's Space Page. Retrieved 2009-06-25. 
  5. ^ a b c d e "NASA'S Tracking and Data Relay Satellite". NASA Facts Online. December 1992. Retrieved 2009-06-25. 
  6. ^
  7. ^ "TDRS-1 Satellite Reaches 25 Years Of Age". Space Mart. 2008-04-08. Retrieved 2009-06-24. 
  8. ^ "Tracking and Data Relay Satellite (TDRS) Fleet". NASA. 13 November 2013. Retrieved 5 February 2014. 
  9. ^ "Tracking and Data Relay Satellite (TDRS)". NASA. 13 November 2013. Retrieved 5 February 2014. 
  10. ^ "TDRS-4 Mission Complete; Spacecraft Retired From Active Service". NASA. 8 May 2012. Retrieved 11 May 2012. 
  11. ^ a b c d "TDRS-K Launch Caught Up In Cascade of Fla. Delays". Space News. 2012-11-02. Retrieved 2012-11-05. 
  12. ^ Graham, William (23 January 2014). "ULA opens 2014 campaign with Atlas V launch of TDRS-L". Retrieved 23 February 2014.