翻訳と辞書 Words near each other ・ Discover Worlds ・ Discoverability ・ DiscoverEd ・ Discovered Again! ・ Discovered attack ・ Discovered Money ・ Discovered text (archaeology) ・ Discoverer 1 ・ Discoverer 10 ・ Discoverer 14 ・ Discoverer 16 ・ Discoverer 17 ・ Discoverer 18 ・ Discoverer 19 ・ Discoverer 20 ・ Discoverer 21 ・ Discoverer 22 ・ Discoverer 23 ・ Discoverer 24 ・ Discoverer 25 ・ Discoverer 26 ・ Discoverer 27 ・ Discoverer 28 ・ Discoverer 29 ・ Discoverer 30 ・ Discoverer 31 ・ Discoverer 32 ・ Discoverer 33 ・ Discoverer 34 ・ Discoverer 35 Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Discoverer 21 ： ウィキペディア英語版 Discoverer 21 Discoverer 21, also known as RM-2, was an American satellite which was launched in 1961. It was a technology demonstration spacecraft, based on an Agena-B. The launch of Discoverer 21 occurred at 22:58 UTC on 18 February 1961. A Thor DM-21 Agena-B rocket was used, flying from Launch Complex 75-3-5 at the Vandenberg Air Force Base. Upon successfully reaching orbit, it was assigned the Harvard designation 1961 Zeta 1. Discoverer 21 was operated in a low Earth orbit, with a perigee of , an apogee of , 80.7 degrees of inclination, and a period of 97.4 minutes. The satellite had a mass of , and was used to demonstrate an engine restart, and to test infrared sensors for the Midas programme.〔 It remained in orbit until 20 April 1962,〔 when it decayed and reentered the atmosphere. ==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「Discoverer 21」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.