Masahiko Arakawa¹, Takanao Saiki², Toshihiko Kadono³, Yasuhiko Takagi⁴, Koji Wada⁵, Yu-ichi Iijima², Hiroshi Imamura², Chisato Okamoto⁶, Yuri Shimaki², Kei Shirai⁷, Satoru Nakazawa², Masahiko Hayakawa⁸, Naru Hirata⁹, Hajime Yano¹⁰, Hirotaka Sawada⁸, Kazunori Ogawa¹¹, Rie Honda¹², Ko Ishibashi¹³, Naoya Sakatani⁸, Tomoaki Toda², Hajime Hayakawa¹⁴, Seiji Sugita¹⁵, Tomokatsu Morota¹⁶, Shingo Kameda¹⁷, Eri Tatsumi¹⁸, Chikatoshi Honda¹⁹, Yasuhiro Yokota²⁰, Toru Kouyama²¹, Manabu Yamada²², Hidehiko Suzuki²³, Kazuo Yoshioka²⁴, Yuichiro Cho¹⁵, Moe Matsuoka⁸ and Patrick Michel²⁵, (1)Kobe Univ., Kobe, Japan, (2)JAXA, Sagamihara, Japan, (3)UOEH, Yahata, Kitakyusyu, Japan, (4)Aichi Toho Univ, Nagoya, Japan, (5)Chiba Institute of Technology, Planetary Exploration Research Center, Chiba, Japan, (6)Kobe University, Kobe, Japan, (7)JAXA Japan Aerospace Exploration Agency, Sagamihara, Japan, (8)ISAS/JAXA, Sagamihara, Japan, (9)The University of Aizu, Aizu-Wakamatsu, Japan, (10)JAXA, Institute of Space and Astronautical Science, Sagamihara, Japan, (11)Center for Planetary Science, Kobe University, Kobe, Japan, (12)Kochi University, Kochi, Japan, (13)Chiba Institute of Technology, Chiba, Japan, (14)Japan Aerospace Exploration Agency, Sagamihara, Japan, (15)University of Tokyo, Bunkyo-ku, Japan, (16)Nagoya University, Nagoya, Japan, (17)Rikkyo University, Tokyo, Japan, (18)University of Tokyo, Tokyo, Japan, (19)University of Aizu, Aizu-Wakamatsu, Japan, (20)JAXA/ISAS, Sagamihara, Japan, (21)National Institute of Advanced Industrial Science and Technology, Tsukuba, Japan, (22)Chiba Institute of Technology, Planetary Exploration Research Center, Narashino, Japan, (23)Meiji University, Kawasaki, Japan, (24)The University of Tokyo, Tokyo, Japan, (25)UNS-CNRS-Observatoire de la Cote d'Azur, Laboratoire Lagrange, NIce, France