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Navstar 46



NAVSTAR 46 (also known as USA 145, and GPS 2R-3) was an American navigational spacecraft of the GPS fleet launched by a Delta 2 rocket from Cape Canaveral at 13:51 UT. This was the third of the 21 redesigned 2R series that may eventually replace the existing GPS fleet. With this launch, the GPS fleet has now 28 operational spacecraft.

Alternate Names

  • 25933
  • GPS 2R-3
  • Navstar46
  • USA 145

Facts in Brief

Launch Date: 1999-10-07
Launch Vehicle: Delta II
Launch Site: Cape Canaveral, United States

Funding Agency

  • Unknown (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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