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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. The final launch was in February 2016.

Also carried as a secondary payload were nuclear detonation detection sensors (NDS).

Nation: USA
Type / Application: Navigation
Operator: US Air Force (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 (GPS SVN 62, Navstar 65, USA 213, Polaris) 2010-022A 28.05.2010 CC SLC-37B Delta-4M+(4,2)
GPS-2F 2 (GPS SVN 63, Navstar 66, USA 232, Sirius) 2011-036A 16.07.2011 CC SLC-37B Delta-4M+(4,2)
GPS-2F 3 (GPS SVN 65, Navstar 67, USA 239, Arcturus) 2012-053A 04.10.2012 CC SLC-37B Delta-4M+(4,2)
GPS-2F 4 (GPS SVN 66, Navstar 68, USA 242, Vega) 2013-023A 15.05.2013 CC SLC-41 Atlas-5(401)
GPS-2F 5 (GPS SVN 64, Navstar 69, USA 248, Canopus) 2014-008A 21.02.2014 CC SLC-37B Delta-4M+(4,2)
GPS-2F 6 (GPS SVN 67, Navstar 70, USA 251, Rigel) 2014-026A 17.05.2014 CC SLC-37B Delta-4M+(4,2)
GPS-2F 7 (GPS SVN 68, Navstar 71, USA 256, Capella) 2014-045A 02.08.2014 CC SLC-41 Atlas-5(401)
GPS-2F 8 (GPS SVN 69, Navstar 72, USA 258, Spica) 2014-068A 29.10.2014 CC SLC-41 Atlas-5(401)
GPS-2F 9 (GPS SVN 71, Navstar 73, USA 260, Deneb) 2015-013A 25.03.2015 CC SLC-37B Delta-4M+(4,2)
GPS-2F 10 (GPS SVN 72, Navstar 74, USA 262, Antares) 2015-033A 15.07.2015 CC SLC-41 Atlas-5(401)
GPS-2F 11 (GPS SVN 73, Navstar 75, USA 265, Altair) 2015-062A 31.10.2015 CC SLC-41 Atlas-5(401)
GPS-2F 12 (GPS SVN 70, Navstar 76, USA 266, Betelgeuse) 2016-007A 05.02.2016 CC SLC-41 Atlas-5(401)

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