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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 Arabsat-1A ： ウィキペディア英語版 Arabsat-1A Arabsat-1A was a Saudi Arabian communications satellite which was operated by Arabsat. It was used to provide communication services to the Arab States. It was constructed by Aérospatiale, based on the Spacebus 100 satellite bus, and carries two NATO E/F-band (IEEE S band) and 25 NATO G/H-Band (IEEE C band) transponders. At launch, it had a mass of , and an expected operational lifespan of seven years. Arabsat-1A was launched by Arianespace using an Ariane 3 rocket flying from ELA-1 at Kourou. The launch took place at 23:22:00 GMT on 8 February 1985. It was the first Spacebus satellite to be launched. Immediately after launch, one of its solar panels failed to deploy, resulting in reduced performance. It was placed into a geosynchronous orbit at a longitude of 19° East. Following a series of gyroscope malfunctions, it was retired from active service, and remained operational as a backup.〔 In September 1991, another problem developed with the spacecraft's altitude control system, and it began to drift eastward. It failed completely in March 1992. ==See also== *1985 in spaceflight 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「Arabsat-1A」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.