OPS 5118
Lua error in Module:Infobox at line 199: malformed pattern (missing ']'). OPS 5118, also known as Navstar 6, GPS I-6 and GPS SVN-6, was an American navigation satellite launched in 1980 as part of the Global Positioning System development programme. It was the sixth of eleven Block I GPS satellites to be launched.[2]
OPS 5118 was launched at 22:00 UTC on 26 April 1980, atop an Atlas E/F carrier rocket with an SGS-1 upper stage. The Atlas used had the serial number 34F, and was originally built as an Atlas F.[3] The launch took place from Space Launch Complex 3E at Vandenberg Air Force Base,[5] and placed OPS 5118 into a transfer orbit. The satellite raised itself into medium Earth orbit using a Star-27 apogee motor.[2]
By 27 May 1980, OPS 5118 had been raised to an orbit with a perigee of 20,006 kilometres (12,431 mi), an apogee of 20,357 kilometres (12,649 mi), a period of 717.94 minutes, and 62.8 degrees of inclination to the equator.[4] The satellite had a design life of 5 years and a mass of 758 kilograms (1,671 lb).[2] It broadcast the PRN 09 signal in the GPS demonstration constellation, and was retired from service on 6 March 1991.
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