A Block IIF GPS satellite
Mission typeNavigation
OperatorUS Air Force
COSPAR ID2011-036A[1]
SATCAT no.37753[1]
Mission duration12 years (planned)
Spacecraft properties
SpacecraftGPS SVN-63 (IIF-2)
Spacecraft typeGPS Block IIF
Launch mass1,630 kilograms (3,590 lb)[2]
Start of mission
Launch date16 July 2011, 06:41 (2011-07-16UTC06:41Z) UTC
RocketDelta IV-M+(4,2), D355[3]
Launch siteCape Canaveral SLC-37B[3]
Orbital parameters
Reference systemGeocentric
RegimeMedium Earth
Perigee altitude20,452 kilometers (12,708 mi)[4]
Apogee altitude20,463 kilometers (12,715 mi)[4]
Inclination55 degrees[4]
Period729.16 minutes[4]

USA-232, also known as GPS IIF-2, and GPS SVN-63, is an American navigation satellite which forms part of the Global Positioning System. It was the second of twelve Block IIF satellites to be launched.[2]

Built by Boeing and launched by United Launch Alliance, USA-232 was launched at 06:41 UTC on 16 July 2011, atop a Delta IV carrier rocket, flight number D355, flying in the Medium+(4,2) configuration.[3] The launch took place from Space Launch Complex 37B at the Cape Canaveral Air Force Station,[5] and placed USA-232 directly into medium Earth orbit.[4]

As of 24 July 2011, USA-232 was in an orbit with a perigee of 20,452 kilometers (12,708 mi), an apogee of 20,463 kilometers (12,715 mi), a period of 729.16 minutes, and 55.0 degrees of inclination to the equator.[4] It is used to broadcast the PRN 01 signal, and operates in slot 2 of plane D of the GPS constellation. The satellite has a design life of 15 years and a mass of 1,630 kilograms (3,590 lb). [2] As of 2019 it remains in service.


  1. ^ a b "Navstar 66". US National Space Science Data Center. Retrieved 3 July 2012.
  2. ^ a b c Krebs, Gunter. "GPS-2F (Navstar-2F)". Gunter's Space Page. Retrieved 12 July 2012.
  3. ^ a b c McDowell, Jonathan. "Launch Log". Jonathan's Space Page. Retrieved 12 July 2012.
  4. ^ a b c d e f McDowell, Jonathan. "Satellite Catalog". Jonathan's Space Page. Retrieved 12 July 2012.
  5. ^ McDowell, Jonathan. "Launch List". Launch Vehicle Database. Jonathan's Space Page. Retrieved 12 July 2012.