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GPS 2R-18



GPS 2R-18, also known as GPS 2R-M, Navstar 61, and USA 199, is a navigational craft in the American GPS fleet that was launched by a Delta 2 rocket from Cape Canaveral at 20:04 UT on 20 December 2007. The 2.04 tonne (with fuel) craft will be moved to Slot 1 in Plane C, replacing GPS 2A-24, which will in turn be moved to replace the ailing GPS 2A-20.

Alternate Names

  • GPS 57
  • 32384
  • GPS 2R-M
  • Navstar 61
  • USA 199
  • GPS2R-18

Facts in Brief

Launch Date: 2007-12-20
Launch Vehicle: Delta II 7925
Launch Site: Cape Canaveral, United States
Mass: 2059 kg

Funding Agency

  • Department of Defense (United States)


  • Navigation/Global Positioning

Additional Information

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

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