USA-256

USA-256
A Block IIF GPS satellite
Mission typeNavigation
OperatorUS Air Force
COSPAR ID2014-045A[1]
SATCAT no.40105[1]
Mission duration12 years (planned)
Spacecraft properties
SpacecraftGPS SVN-68 (IIF-7)
Spacecraft typeGPS Block IIF
ManufacturerBoeing
Launch mass1,630 kilograms (3,590 lb)[2]
Start of mission
Launch date2 August 2014, 03:23 (2014-08-02UTC03:23Z) UTC
RocketAtlas V 401, AV-048[3]
Launch siteCape Canaveral SLC-41[3]
ContractorULA
Orbital parameters
Reference systemGeocentric
RegimeMedium Earth
(Semi-synchronous)
Perigee altitude20,341 km (12,639 mi)[4]
Apogee altitude20,469 km (12,719 mi)[4]
Inclination55.02 degrees[4]
Period727.05 minutes[4]
Epoch2 August 2014

USA-256, also known as GPS IIF-7, GPS SVN-68 and NAVSTAR 71, is an American navigation satellite which forms part of the Global Positioning System. It was the seventh of twelve Block IIF satellites to be launched.[2]

  1. ^ a b "Navstar 71". US National Space Science Data Center. Retrieved 3 August 2014.
  2. ^ a b Cite error: The named reference GSP was invoked but never defined (see the help page).
  3. ^ a b Cite error: The named reference LL was invoked but never defined (see the help page).
  4. ^ a b c d Cite error: The named reference satcat was invoked but never defined (see the help page).