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AMC-21
AMC-21, or Americom-21, is a communications satellite operated by SES World Skies, formerly SES Americom. It was launched in August 2008 and is expected to remain in service for approximately 15 years. It is currently located at 125° West longitude. ==Spacecraft and mission design== AMC-21 is based on a STAR-2 platform that provides 4.4 kilowatts of power for the communications payload. The platform will support a 15-year on-orbit mission life.〔(【引用サイトリンク】title=AMC-21 )〕 It carries 24 J band (IEEE Ku band) transponders, which will be used to broadcast television signals to Canada the Caribbean, Mexico, and the United States.〔
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「AMC-21」の詳細全文を読む
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