USA-117

USA-117
NamesNavstar 2A-16
GPS IIA-16
GPS II-25
GPS SVN-33
Mission typeNavigation
OperatorU.S. Air Force
COSPAR ID1996-019A [1]
SATCAT no.23833
Mission duration7.5 years (planned)
18.25 years (achieved)
Spacecraft properties
SpacecraftGPS IIA
Spacecraft typeGPS Block IIA[2]
ManufacturerRockwell International
Launch mass840 kg (1,850 lb)
Dimensions5.3 m (17 ft) of long
Power710 watts
Start of mission
Launch date28 March 1996, 00:21:00 UTC
RocketDelta II 7925-9.5
(Delta D234)
Launch siteCape Canaveral, LC-17B
ContractorMcDonnell Douglas
Entered service27 April 1996
End of mission
DisposalGraveyard orbit
Deactivated2 August 2014
Orbital parameters
Reference systemGeocentric orbit[3]
RegimeMedium Earth orbit
(Semi-synchronous)
SlotC2 (slot 2 plane C)
Perigee altitude20,078 km (12,476 mi)
Apogee altitude20,282 km (12,603 mi)
Inclination54.70°
Period718.00 minutes
← USA-100 (GPS IIA-15)
USA-126 (GPS IIA-17) →

USA-117, also known as GPS IIA-16, GPS II-25 and GPS SVN-33, is an American navigation satellite which forms part of the Global Positioning System. It was the sixteenth of nineteen Block IIA GPS satellites to be launched.

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