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USA 164 is an American geosynchronous military communications spacecraft that was launched by a Titan 4B rocket from Cape Canaveral at 23:30 UT on 16 January 2002. The 4,545 kg, 5 kW satellite belongs to the fleet of Milstar 2 satellites that are extra-secure against jamming, and radiation/blast attacks, and that enables secure links among ships, submarines, aircraft, and ground forces. Being the fifth in the Milstar 2 series, it also carries the alternative names of MILSTAR 5 and MILSTAR 2-5, being actually the fourth and final member of the four-satellite grid. (MILSTAR 4 was a launch failure.)

Alternate Names

  • USA 164
  • 27168

Facts in Brief

Launch Date: 2002-01-16
Launch Vehicle: Titan 4B
Launch Site: Cape Canaveral, United States

Funding Agency

  • Department of Defense (United States)


  • Communications
  • 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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