Atsushi Yamazaki¹, Go Murakami¹, Kazuo Yoshioka², Tomoki Kimura³, Fuminori Tsuchiya⁴, Masato Kagitani⁴, Takeshi Sakanoi⁴, Naoki Terada⁵, Yasumasa Kasaba⁵, Ichiro Yoshikawa² and Hisaki (SPRINT-A) Project team, (1)JAXA Japan Aerospace Exploration Agency, Sagamihara, Japan, (2)The University of Tokyo, Tokyo, Japan, (3)Frontier Research Institute for Interdisciplinary Sciences, Tohoku University, Sendai, Japan, (4)PPARC, Tohoku University, Sendai, Japan, (5)Tohoku University, Sendai, Japan