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USA 159



USA 159 is an American geosynchronous military reconnaissance satellite in the DSP (Defense Support Program) fleet that was launched by a Titan 4B rocket from Cape Canaveral at 07:28 UT on 6 August 2001. The 2,386 kg, 1.485 kW, 10 m long and 6.7 m diameter spacecraft carries an array of 6,000 heat-sensing detectors to monitor and locate missile launches. It will also enable monitoring surface nuclear explosions and forest fires. The USA 159 is the 21st member of the DSP fleet, with many of its members still operational. Its alternative name may probably be DSP 21.

Alternate Names

  • 26880
  • USA159

Facts in Brief

Launch Date: 2001-08-06
Launch Vehicle: Titan 4B
Launch Site: Cape Canaveral, United States

Funding Agency

  • Unknown (United States)


  • Surveillance and Other Military

Additional Information

Questions and comments about this spacecraft can be directed to: Coordinated Request and User Support Office

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