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Orlets-1 or Don (GRAU index 17F12) is a Russian (previously Soviet) reconnaissance satellite.〔NSSDC Master Catalog: (Cosmos 2290 )〕〔Gunter's Space Page: (Orlets-1 (Don, 17F12) )〕 Orlets-1 was made after it was concluded that the Yantar-2K satellite was not capable of providing strategic warning of attack,〔 and drew on features of an existing draft project designated Yantar-6K.〔 It has a wide-spectrum panoramic camera,〔 carries 8 film return capsules〔〔 and has a design life of 60 days,〔 After its mission has ended, the satellite is detonated in its orbit.〔 Orlets-1 is being launched by the Soyuz-U〔 or Soyuz-U2〔〔 launch vehicle. An improved version of Orlets-1 exists, called Orlets-2.〔 ==References== * ''This article incorporates text from ''(NSSDC Master Catalog )'', a publication in the public domain.'' 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「Orlets-1」の詳細全文を読む スポンサード リンク
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