USA-126

USA-126
NamesNavstar 2A-17
GPS IIA-17
GPS II-26
GPS SVN-40
Mission typeNavigation
OperatorU.S. Air Force
COSPAR ID1996-041A[1]
SATCAT no.23953
Mission duration7.5 years (planned)
19.5 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 date16 July 1996, 00:50:00 UTC
RocketDelta II 7925-9.5
(Delta D237)
Launch siteCape Canaveral, LC-17A
Entered service15 August 1996
End of mission
DisposalGraveyard orbit
Deactivated11 March 2016
Orbital parameters
Reference systemGeocentric orbit[3]
RegimeMedium Earth orbit
(Semi-synchronous)
SlotE3 (slot 3 plane E)
Perigee altitude20,272 km (12,596 mi)
Apogee altitude20,365 km (12,654 mi)
Inclination55.03°
Period723.60 minutes
← USA-117 (GPS IIA-16)
USA-128 (GPS IIA-18) →

USA-126, also known as GPS IIA-17, GPS II-26 and GPS SVN-40, is an American navigation satellite which forms part of the Global Positioning System. It was the seventeenth of nineteen Block IIA GPS satellites to be launched.

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