Development of a micro-satellite TSUBAME for X-ray polarimetry of GRBs

Shin Kurita; Haruka Ohuchi; Makoto Arimoto; Yoichi Yatsu; Nobuyuki Kawai; Kei Ohta; Masaya Koga; EuGene Kim; Kyosuke Tawara; Souta Suzuki; Kazuyoshi Miyasato; Takashi Nagasu; Shouta Kawajiri; Masanori Matsushita; Saburo Matunaga; Nagahisa Moriyama; Shin'ichi Kimura; TSUBAME team

arXiv · 1503.01975

Development of a micro-satellite TSUBAME for X-ray polarimetry of GRBs

Shin Kurita·Haruka Ohuchi·Makoto Arimoto·Yoichi Yatsu·Nobuyuki Kawai·Kei Ohta·Masaya Koga·EuGene Kim·Kyosuke Tawara·Souta Suzuki·Kazuyoshi Miyasato·Takashi Nagasu·Shouta Kawajiri·Masanori Matsushita·Saburo Matunaga·Nagahisa Moriyama·Shin'ichi Kimura·TSUBAME team

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Abstract

TSUBAME is a micro-satellite that the students of Tokyo Institute of Technology took the lead to develop for measuring hard X-ray polarization of Gamma-Ray Bursts(GRBs) in order to reveal the nature of the central engine of GRBs. TSUBAME has two instruments: Wide-field Burst Monitor (WBM) and Hard X-ray Compton Polarimeter (HXCP). We aim to start observing with HXCP in 15 seconds by pointing the spacecraft using Control Moment Gyro. In August 2014, we assembled TSUBAME and performed an integration test during ~2 weeks.TSUBAME by communication tests with Cute-1.7+APDII in orbit. On Nov 6 2014, TSUBAME was launched from Russia and it was put into Sun-synchronous orbit at 500 km above the ground. However, serious trouble occurred to the ham radio equipment. Therefore we could not start up the X-ray sensors until Feb 10 2015. In this paper, we report the system of TSUBAME and the progress after the launch.

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Shin Kurita, Haruka Ohuchi, Makoto Arimoto, Yoichi Yatsu, Nobuyuki Kawai, Kei Ohta, Masaya Koga, EuGene Kim, Kyosuke Tawara, Souta Suzuki, Kazuyoshi Miyasato, Takashi Nagasu, Shouta Kawajiri, Masanori Matsushita, Saburo Matunaga, Nagahisa Moriyama, Shin'ichi Kimura, TSUBAME team. 2015-03-06. Development of a micro-satellite TSUBAME for X-ray polarimetry of GRBs. https://arxiv.org/abs/1503.01975

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