NASA Logo, National Aeronautics and Space Administration
NASA Space Science Data Coordinated Archive Header

Navstar 2-05



USA 49 (GPS 2 F5) was a navigational satellite launched by a 3-stage Delta 2 rocket from Cape Canaveral AFS. It was part of the 21-satellite Navstar Global Positioning System Block 2 series that provides precise position data (accurate to within 16 m) to military and civilian users worldwide. The GPS 2 satellites, built by Rockwell International for the Air Force Space Systems Division, each 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. The Block 2 Navstars join 7 operational Block 1 satellites.

Alternate Names

  • 20361
  • GPS 2 F5
  • Navstar2-05
  • USA 49

Facts in Brief

Launch Date: 1989-12-11
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

[] NASA Logo -