Template:Infobox spaceflight USA-88, also known as GPS IIA-9, GPS II-18 and GPS SVN-22, was an American navigation satellite which formed part of the Global Positioning System. It was the ninth of nineteen Block IIA GPS satellites to be launched.

USA-88 was launched at 02:55:00 UTC on 3 February 1993, atop a Delta II carrier rocket, flight number D218, flying in the 7925-9.5 configuration.[1] The launch took place from Launch Complex 17A at the Cape Canaveral Air Force Station,[2] and placed USA-88 into a transfer orbit. The satellite raised itself into medium Earth orbit using a Star-37XFP apogee motor.[3]

On 5 March 1993, USA-88 was in an orbit with a perigee of 20,007 kilometres (Template:Convert/round mi), an apogee of 20,354 kilometres (Template:Convert/round mi), a period of 717.9 minutes, and 54.8 degrees of inclination to the equator.[4] It broadcast PRN 22, and operated in slot 1 of plane B of the GPS constellation.[5] The satellite had a mass of 1,816 kilograms (Template:Convert/round lb). It had a design life of 7.5 years,[3] and ceased operations on 6 August 2003.


  1. McDowell, Jonathan. "Launch Log". Jonathan's Space Page. Retrieved 10 July 2012. 
  2. McDowell, Jonathan. "Launch List". Launch Vehicle Database. Jonathan's Space Page. Retrieved 10 July 2012. 
  3. 3.0 3.1 Krebs, Gunter. "GPS-2A (Navstar-2A)". Gunter's Space Page. Retrieved 10 July 2012. 
  4. McDowell, Jonathan. "Satellite Catalog". Jonathan's Space Page. Retrieved 10 July 2012. 
  5. Wade, Mark. "Navstar". Encyclopedia Astronautica. Retrieved 10 July 2012. 
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