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OPS 9794
OPS 9794, also known as Navstar 8, GPS I-8 and GPS SVN-8, was an American navigation satellite launched in 1983 as part of the Global Positioning System development program. It was the eighth of eleven Block I GPS satellites to be launched.〔
OPS 9794 was launched at 10:21 UTC on 14 July 1983, atop an Atlas E/F carrier rocket with an SGS-2 upper stage. The Atlas used had the serial number 75E, and was originally built as an Atlas E. The launch took place from Space Launch Complex 3W at Vandenberg Air Force Base, and placed OPS 9794 into a transfer orbit. The satellite raised itself into medium Earth orbit using a Star-27 apogee motor.
By 14 August 1983, OPS 9794 had been raised to an orbit with a perigee of , an apogee of , a period of 717.96 minutes, and 62.8 degrees of inclination to the equator. The satellite had a design life of 5 years and a mass of .〔 It broadcast the PRN 11 signal in the GPS demonstration constellation, and was retired from service on 4 May 1993.
==References==
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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