The SOLAR-A mission: An overview |
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| Authors: | Y Ogawara T Takano T Kato T Kosugi S Tsuneta T Watanabe I Kondo Y Uchida |
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| Institution: | (1) Institute of Space and Astronautical Science, Sagamihara, 229 Kanagawa, Japan;(2) Institute of Astronomy, University of Tokyo, Mitaka, 181 Tokyo, Japan;(3) National Astronomical Observatory, Mitaka, 181 Tokyo, Japan;(4) Faculty of Systems Engineering, Shibaura Institute of Technology, Tameihara, Fukasaku, Omiya, 330 Saitama, Japan;(5) Department of Astronomy, Faculty of Science, University of Tokyo, Bunkyo-ku, 113 Tokyo, Japan |
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| Abstract: | The SOLAR-A spacecraft is to be launched by the Institute of Space and Astronautical Science, Japan (ISAS) in August, 1991. As a successor of HINOTORI, this mission is dedicated principally to the study of solar flares, especially of high-energy phenomena observed in the X- and gamma-ray ranges. The SOLAR-A will be the unique space solar observatory during the current activity maximum period (1989–1992). With a coordinated set of instruments including hard X-ray and soft X-ray imaging telescopes as well as spectrometers with advanced capabilities, it will reveal many new aspects of flares and help better understand their physics, supporting international collaborations with ground-based observatories as well as theoretical investigations. An overview of this mission, including the satellite, its scientific instruments, and its operation, is given in this paper. Also the scientific objectives are briefly discussed.After the launch the name of SOLAR-A has been changed to YOHKOH. |
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