USA-132
A Block IIR GPS satellite
NamesNavstar 43
GPS IIR-2
GPS SVN-43
Mission typeNavigation
OperatorU.S. Air Force
COSPAR ID1997-035A [1]
SATCAT no.24876
Mission duration10 years (planned)
26 years, 7 months and 14 days (elapsed)
Spacecraft properties
SpacecraftGPS IIR
Spacecraft typeGPS Block IIR[2]
BusAS-4000
ManufacturerLockheed Martin
Launch mass2,032 kg (4,480 lb)
Start of mission
Launch date23 July 1997, 03:43:01 UTC
RocketDelta II 7925-9.5
(Delta D245)
Launch siteCape Canaveral, LC-17A
ContractorMcDonnell Douglas
Entered service22 August 1997
Orbital parameters
Reference systemGeocentric orbit[3]
RegimeMedium Earth orbit
(Semi-synchronous)
SlotF3 (slot 3 plane F)
Perigee altitude19,023 km (11,820 mi)
Apogee altitude20,224 km (12,567 mi)
Inclination54.90°
Period713.00 minutes
← GPS IIR-1
USA-135 (GPS IIR-3) →
 

USA-132, also known as GPS IIR-2 and GPS SVN-43, is an American navigation satellite which forms part of the Global Positioning System. It was the second Block IIR GPS satellite to be launched, out of thirteen in the original configuration, and twenty one overall. GPS IIR-1 failed to achieve orbit, so USA-132 was the first successful Block IIR satellite. It was built by Lockheed Martin, using the AS-4000 satellite bus.[2]

Launch

USA-132 was launched at 03:43:01 UTC on 23 July 1997, atop a Delta II launch vehicle, flight number D245, flying in the 7925-9.5 configuration.[4] The launch took place from Launch Complex 17A (LC-17A) at the Cape Canaveral Air Force Station (CCAFS),[5] and placed USA-132 into a transfer orbit. The satellite raised itself into medium Earth orbit using a Star-37FM apogee motor.[2]

Mission

On 22 August 1997, USA-132 was in an orbit with a perigee of 19,023 km (11,820 mi), an apogee of 20,224 km (12,567 mi), a period of 713.00 minutes, and 54.90° of inclination to the equator.[3] It is used to broadcast the PRN 13 signal, and operates in slot 3 of plane F of the GPS constellation.[6] The satellite has a mass of 2,032 kg (4,480 lb), and a design life of 10 years.[2] As of 2023 it remains in service and holds the record for the longest operational GPS satellite.

References

  1. ^ "Display: Navstar 43 1997-035A". NASA. Retrieved 11 July 2012. Public Domain This article incorporates text from this source, which is in the public domain.
  2. ^ a b c d Krebs, Gunter. "GPS-2R (Navstar-2R)". Gunter's Space Page. Retrieved 11 July 2012.
  3. ^ a b "Trajectory: Navstar 43 1997-035A". NASA. Retrieved 11 July 2012. Public Domain This article incorporates text from this source, which is in the public domain.
  4. ^ McDowell, Jonathan. "Launch Log". Jonathan's Space Report. Retrieved 11 July 2012.
  5. ^ McDowell, Jonathan. "Launch List". Launch Vehicle Database. Jonathan's Space Report. Retrieved 11 July 2012.
  6. ^ Wade, Mark. "Navstar". Encyclopedia Astronautica. Archived from the original on 11 November 2002. Retrieved 11 July 2012.


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