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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 Kosmos 1818 ： ウィキペディア英語版 Kosmos 1818 ==Description== Kosmos 1818 was launched on February 1, 1987 on a Tsyklon-2 rocket from the Baikonur Cosmodrome. It was put into an orbit about above the Earth's surface at an inclination of 65° and a period of 100.6 minutes. Its NSSDC ID is 1987-011A, and its NORAD ID is 17369. The satellite had a mission life of about five to six months. The satellite was powered by TOPAZ 1 nuclear reactor. This was cooled by liquid sodium-potassium, NaK, metal, it uses a high-temperature moderator containing hydrogen and highly enriched fuel. It produces electricity using a thermionic converter. It had a Plazma-2 SPT electric engine. Its mission was to search the oceans for naval and merchant vessels. Unlike earlier Soviet RORSAT satellites, Kosmos 1818 and its twin, Kosmos 1867, were launched into high orbits. This avoided mishaps, such as occurred with Kosmos 954, which broke up over Canada in 1978, showering the Earth with radioactive debris.〔 In 1992, Kosmos 1818 had an approximate visual magnitude of 3.3. 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「Kosmos 1818」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.