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Navstar 2-01



USA 35 was launched from Cape Canaveral AFS aboard the first Delta 2 launch vehicle. It was one of the 21-satellite Navstar Global Positioning System (GPS) Block 2 series. When complete, the constellation will provide precise position data (accurate to within 16 m) to military and civilian users worldwide. Navstar signals can be received on devices as small as a telephone. The new generation Delta is 4.2 m taller and 13% more powerful than its predecessor. It can boost 3,982 kg into low-earth orbit, 1,447 kg into geotransfer orbit. The GPS 2 satellites, built by Rockwell International for Air Force Space Systems Division, each have a 7.5-year design life. The Air Force intends to launch a GPS every 2 to 3 months until the constellation of 21 operational satellites and 3 spares is aloft.

Alternate Names

  • 19802
  • GPS 2 F1
  • Navstar2-01
  • USA 35

Facts in Brief

Launch Date: 1989-02-14
Launch Vehicle: Delta
Launch Site: Cape Canaveral, United States
Mass: 840 kg
Nominal Power: 710 W

Funding Agency

  • Department of Defense-Department of the Air Force (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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