Ryoichi Koga¹, Fuminori Tsuchiya¹, Masato Kagitani¹, Takeshi Sakanoi¹, Tomoki Kimura², Kazuo Yoshioka³, Ichiro Yoshikawa³, Go Murakami⁴, Atsushi Yamazaki⁵, Howard Todd Smith⁶ and Fran Bagenal⁷, (1)PPARC, Tohoku University, Sendai, Japan, (2)Frontier Research Institute for Interdisciplinary Sciences, Tohoku University, Sendai, Japan, (3)The University of Tokyo, Tokyo, Japan, (4)JAXA Japan Aerospace Exploration Agency, Sagamihara, Japan, (5)ISAS/JAXA, Sagamihara, Kanagawa, Japan, (6)Applied Physics Laboratory Johns Hopkins, Laurel, MD, United States, (7)Univ Colorado, Boulder, CO, United States