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Usa-80

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Title: Usa-80  
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Usa-80

USA-80
A Block IIA GPS satellite
Mission type Navigation
Operator US Air Force
COSPAR ID 1992-019A[1]
SATCAT № 21930[1]
Mission duration 7.5 years (planned)[2]
Spacecraft properties
Spacecraft type GPS Block IIA[2]
Manufacturer Rockwell[2]
Launch mass 1,816 kilograms (4,004 lb)[2]
Start of mission
Launch date 10 April 1992, 03:20:00 (1992-04-10T03:20Z) UTC
Rocket Delta II 7925-9.5, D208[3]
Launch site Cape Canaveral LC-17B[3]
End of mission
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Orbital parameters
Reference system Geocentric
Regime Medium Earth
(Semi-synchronous)
Perigee 19,979 kilometres (12,414 mi)[4]
Apogee 20,384 kilometres (12,666 mi)[4]
Inclination 55.1 degrees[4]
Period 717.94 minutes[4]

USA-80, also known as GPS IIA-4, GPS II-13 and GPS SVN-28, was an American navigation satellite which formed part of the Global Positioning System. It was the fourth of nineteen Block IIA GPS satellites to be launched.

USA-80 was launched at 03:20:00 UTC on 10 April 1992, atop a Delta II carrier rocket, flight number D208, flying in the 7925-9.5 configuration.[3] The launch took place from Launch Complex 17B at the Cape Canaveral Air Force Station,[5] and placed USA-80 into a transfer orbit. The satellite raised itself into medium Earth orbit using a Star-37XFP apogee motor.[2]

On 12 May 1992, USA-80 was in an orbit with a perigee of 19,979 kilometres (12,414 mi), an apogee of 20,384 kilometres (12,666 mi), a period of 717.94 minutes, and 55.1 degrees of inclination to the equator.[4] It had PRN 28, and operated in slot 2 of plane C of the GPS constellation. The satellite had a mass of 1,816 kilograms (4,004 lb). It had a design life of 7.5 years,[2] however it was retired early, on 15 August 1997. It was replaced by USA-117.

References

  1. ^ a b "Navstar 2A-04". US National Space Science Data Center. Retrieved 10 July 2012. 
  2. ^ a b c d e f Krebs, Gunter. "GPS-2A (Navstar-2A)". Gunter's Space Page. Retrieved 10 July 2012. 
  3. ^ a b c McDowell, Jonathan. "Launch Log". Jonathan's Space Page. Retrieved 10 July 2012. 
  4. ^ a b c d e McDowell, Jonathan. "Satellite Catalog". Jonathan's Space Page. Retrieved 10 July 2012. 
  5. ^ McDowell, Jonathan. "Launch List". Launch Vehicle Database. Jonathan's Space Page. Retrieved 10 July 2012. 
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