Prospects for future analyses of the returned asteroid samples in light of the observation results obtained by Hayabusa2 and OSIRIS-REx missions

Hikaru Yabuta, Hiroshima University, Higashi-Hiroshima, Japan, Shogo Tachibana, Univ. of Tokyo, Tokyo, Japan, Masanao Abe, JAXA Japan Aerospace Exploration Agency, Sagamihara, Japan, Makoto Yoshikawa, Japan Aerospace Exploration Agency, Kanagawa, Japan, Seiichiro Watanabe, Nagoya Univ., Nagoya, Japan, Yuichi Tsuda, JAXA, Sagamihara, Japan and Hayabusa2 Science Team