翻訳と辞書 |
EchoStar XIV : ウィキペディア英語版 | EchoStar XIV
EchoStar XIV is an American geostationary communications satellite which is operated by EchoStar. It is positioned in geostationary orbit at a longitude of 119° West, from where it is used to provide high-definition television direct broadcasting services to the continental United States for Dish Network.〔〔 EchoStar XIV was built by Space Systems/Loral, and is based on the LS-1300 satellite bus. It is equipped with 103 J band (IEEE Ku band) transponders,〔(【引用サイトリンク】title=Echostar 14 (Echostar XIV) )〕 and at launch it had a mass of , with an expected operational lifespan of around 15 years The launch of EchoStar XIV was conducted by International Launch Services, using a Proton-M carrier rocket with a Briz-M upper stage. The launch occurred from Site 200/39 at the Baikonur Cosmodrome in Kazakhstan, at 18:26:57 UTC on 20 March 2010. The launch successfully placed EchoStar XIV into a geosynchronous transfer orbit.〔(【引用サイトリンク】title=EchoStar XIV Mission Overview )〕 Following separation from the rocket, it manoeuvred into a geostationary orbit with a perigee of and an apogee of .〔 ==See also==
*2010 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「EchoStar XIV」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.
|
|