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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク USA-87 ： ウィキペディア英語版 USA-87 USA-87, also known as GPS IIA-8, GPS II-17 and GPS SVN-29, was an American navigation satellite which formed part of the Global Positioning System. It was the eighth of nineteen Block IIA GPS satellites to be launched. USA-87 was launched at 22:16:00 UTC on 18 December 1992, atop a Delta II carrier rocket, flight number D217, flying in the 7925-9.5 configuration. The launch took place from Launch Complex 17B at the Cape Canaveral Air Force Station, and placed USA-87 into a transfer orbit. The satellite raised itself into medium Earth orbit using a Star-37XFP apogee motor. On 25 January 1993, USA-87 was in an orbit with a perigee of , an apogee of , a period of 717.94 minutes, and 54.7 degrees of inclination to the equator. It had PRN 29, and operated in slot 5 of plane F of the GPS constellation. The satellite had a mass of . It had a design life of 7.5 years,〔 and ceased operations on 23 October 2007. ==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-87」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.