USA-84

USA-84
NamesNavstar 2A-06
GPS IIA-6
GPS II-15
GPS SVN-27
Mission typeNavigation
OperatorU.S. Air Force
COSPAR ID1992-058A [1]
SATCAT no.22108
Mission duration7.5 years (planned)
24.5 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 date9 September 1992,
08:57:00 UTC
RocketDelta II 7925-9.5
(Delta D214)
Launch siteCape Canaveral, LC-17A
ContractorMcDonnell Douglas
Entered service11 October 1992
End of mission
DisposalGraveyard orbit
Deactivated18 April 2017
Orbital parameters
Reference systemGeocentric orbit[3]
RegimeMedium Earth orbit
(Semi-synchronous)
SlotA4 (slot 4 plane A)
Perigee altitude19,914 km (12,374 mi)
Apogee altitude20,335 km (12,636 mi)
Inclination54.7°
Period717.98 minutes
← USA-83 (GPS IIA-5)
USA-85 (GPS IIA-7) →

USA-84, also known as GPS IIA-6, GPS II-15 and GPS SVN-27, is an American navigation satellite which forms part of the Global Positioning System. It was the sixth of nineteen Block IIA GPS satellites to be launched.

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  2. ^ Cite error: The named reference GSP was invoked but never defined (see the help page).
  3. ^ Cite error: The named reference Trajectory was invoked but never defined (see the help page).