Ayako Matsuoka, JAXA Japan Aerospace Exploration Agency, Sagamihara, Japan, Michele Karen Dougherty, Imperial College, London, United Kingdom, Patrick Brown, Imperial College, Blackett Laboratory, London, United Kingdom, Hans Ulrich Auster, Technische Universität Braunschweig, Braunschweig, Germany, Futoshi Takahashi, Kyushu University, Fukuoka, Japan, Hisayoshi Shimizu, Univ Tokyo, Tokyo, Japan and Masaki Matsushima, Tokyo Tech, Tokyo, Japan