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Hinotori, also known as Astro-A before launch, was Japan's first X-ray astronomy satellite. It was developed by the Institute of Space and Astronautical Science (ISAS). Its primary mission was to study of solar flares emanating from the Sun during the solar maximum.〔Gunter's Space Page, ( "Astro A (Hinotori)" ); retrieved 2014-12-23.〕 It was launched successfully on February 21, 1981 using a M-3S rocket as the vehicle from Uchinoura Space Center (known at the time as Kagoshima). After the start of normal operation, it observed a large solar flare and, a month later, succeeded in observing 41 flares of many sizes from the Sun. It reentered the atmosphere on July 11, 1991.〔ISAS, ( "Solar Observation HINOTORI (ASTRO-A)" ); retrieved 2014-12-23.〕 ==Instruments== * Solar flare X-ray imager (SXT) * Solar soft X-ray bright line spectrum analyzer (SOX) * Solar soft X-ray monitor (HXM) * Solar flare monitor (FLM) * Solar gamma ray monitor (SGR) * Particle ray monitor (PXM) * Plasma electron density measurement instrument (IMP) * Plasma electron temperature measurement instrument (TEL) 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「Hinotori (satellite)」の詳細全文を読む スポンサード リンク
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