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SAC-D
SAC-D ((スペイン語:Satelite de Aplicaciones Cientificas-D), meaning ''Satellite for Scientific Applications-D''), also known as Aquarius after its primary instrument, is an Argentine Earth science satellite built by INVAP and launched on June 10, 2011.〔(【引用サイトリンク】url=http://science1.nasa.gov/missions/aquarius/ )〕 It carries seven instruments to study the environment, and a technology demonstration experiment.〔(【引用サイトリンク】title=Aquarius/SAC-D Instruments )〕 Its primary instrument, Aquarius, was built by and is operated by the United States National Aeronautics and Space Administration. SAC-D is operated by CONAE, the Argentine space agency. The satellite was planned to operate for five years; however the Aquarius instrument was only planned to operate for three.〔(【引用サイトリンク】url=http://www.ksby.com/news/vandenberg-delays-launch-of-aquarius-satellite/ )〕 The satellite failed on 8 June 2015. The Aquarius instrument successfully achieved its science objectives and completed its primary three-year mission in November 2014.
==Launch==
NASA launched Aquarius/SAC-D from Vandenberg Air Force Base, California, on June 10, 2011.
〔(【引用サイトリンク】title=NASA's 'Age of Aquarius' Dawns With California Launch )〕 A Delta II 7320-10 was used as the launch vehicle, taking off from Space Launch Complex 2W at Vandenberg Air Force Base. NASA was responsible for providing launch services,〔(【引用サイトリンク】title=Aquarius / SAC-D Satellite Mission )〕 which were subcontracted to United Launch Alliance. The launch was delayed from May 2010 because development of the spacecraft was taking longer than expected.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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