USA-35

USA-35
NamesNavstar 2-01
GPS II-1
GPS SVN-14
Mission typeNavigation
OperatorU.S. Air Force
COSPAR ID1989-013A
SATCAT no.19802
Mission duration7.5 years (planned)
11 years (achieved)
Spacecraft properties
SpacecraftGPS II
Spacecraft typeGPS Block II
ManufacturerRockwell International
Launch mass840 kg (1,850 lb)
Dimensions5.3 m (17 ft) of long
Power710 watts
Start of mission
Launch date14 February 1989, 18:30 UTC
RocketDelta II 6925-9.5
(Delta D184)
Launch siteCape Canaveral, LC-17A
ContractorMcDonnell Douglas
Entered service16 March 1989
End of mission
Deactivated14 April 2000
Last contact26 March 2000
Orbital parameters
Reference systemGeocentric orbit
RegimeMedium Earth orbit
(Semi-synchronous)
SlotE1 (slot 1 plane E)
Perigee altitude19,858 km (12,339 mi)
Apogee altitude20,270 km (12,600 mi)
Inclination55.1°
Period713.2 minutes

USA-35, also known as Navstar 2-01, GPS II-1 and GPS SVN-14, was an American navigation satellite which formed part of the Global Positioning System. It was the first of nine Block II GPS satellites to be launched, which were the first operational GPS satellites to be launched.