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USA-90
USA-90, also known as GPS IIA-10, GPS II-19 and GPS SVN-31, was an American navigation satellite which formed part of the Global Positioning System. It was the tenth of nineteen Block IIA GPS satellites to be launched. USA-90 was launched at 03:09:00 UTC on 30 March 1993, atop a Delta II carrier rocket, flight number D219, flying in the 7925-9.5 configuration. The launch took place from Launch Complex 17A at the Cape Canaveral Air Force Station, and placed USA-90 into a transfer orbit. The satellite raised itself into medium Earth orbit using a Star-37XFP apogee motor. On 2 May 1993, USA-90 was in an orbit with a perigee of , an apogee of , a period of 717.96 minutes, and 54.9 degrees of inclination to the equator. It broadcast PRN 31, and operated in slot 3 of plane C of the GPS constellation. The satellite had a mass of . It had a design life of 7.5 years,〔 and ceased operations on 24 October 2005. ==References==
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「USA-90」の詳細全文を読む
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