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GPS-2F (Navstar-2F)

GPS-2F [Boeing]

GPS-2F (Global Positioning System) or Navstar-2F (Navigation System using Timing And Ranging) satellites are the fourth evolution stage of the second generation of the GPS satellites. Improvements included an extended design life of 12 years, faster processors with more memory, and a new civil signal on a third frequency.

The GPS-2F satellites do not need to carry an apogee kick motor, in contrast to the earlier generations, as the launch vehicles provide direct insertion into the GPS orbit. Originally the Delta-4M version was to be used for the Delta launches, but a mass growth of the satellites required a switch to the more powerful Delta-4M+(4,2) version. For Atlas launches, the Atlas-5(401) version is used.

Boeing was contracted with options for up to 33 Block-IIF satellites in 1996, but in 2001 the contract was reduced 12 Block-IIF satellites. In July 2006, satellites 10, 11 and 12 were contracted. The first Block-IIF satellite was originally scheduled to launch in 2006, but was finally launched in 2010.

Nation: USA
Type / Application: Navigation
Operator: USAF
Contractors: Boeing
Equipment: ?
Configuration: 3-Axis stabilized
Propulsion: ?
Power: 2 deployable solar arrays, batteries
Lifetime: 12 years
Mass: 1630 kg
Orbit: 20200 km × 20200 km, 55.0
Satellite COSPAR Date LS Launch Vehicle Remarks
GPS-2F 1 (Navstar 62, USA 213, Polaris) 2010-022A 28.05.2010 CC SLC-37B Delta-4M+(4,2)
GPS-2F 2 (Navstar 63, USA 232, Sirius) 2011-036A 16.07.2011 CC SLC-37B Delta-4M+(4,2)
GPS-2F 3 (Navstar 65, USA 239, Arcturus) 2012-053A 04.10.2012 CC SLC-37B Delta-4M+(4,2)
GPS-2F 4 (Navstar 66, USA 242, Vega) 2013-023A 15.05.2013 CC SLC-41 Atlas-5(401)
GPS-2F 5 (Navstar 64, USA 248, Canopus) 2014-008A 21.02.2014 CC SLC-37B Delta-4M+(4,2)
GPS-2F 6 (Navstar 67) - 2014 CC SLC-37B Delta-4M+(4,2)
GPS-2F 7 (Navstar xx) - 2014 CC SLC-41 Atlas-5(401)
GPS-2F 8 (Navstar xx) - CC SLC-37B Delta-4M+(4,2)
GPS-2F 9 (Navstar xx) - CC SLC-37B Delta-4M+(4,2)
GPS-2F 10 (Navstar xx) - CC SLC-37B Delta-4M+(4,2)
GPS-2F 11 (Navstar xx) - CC Atlas-5(401) or Delta-4M+(4,2)
GPS-2F 12 (Navstar xx) - CC Atlas-5(401) or Delta-4M+(4,2)