*Shinichi Sobue¹、Yoshiaki HONDA³、Shuichi Rokugawa²、Akira Iwasaki²、Nobuhiro Takahashi⁴、Yukari Takayabu²、Riko Oki¹、Toshiyoshi Kimura¹、Teruyuki Nakajima¹、Takeo Tadono¹、Kosuke Yamamoto¹ (1.Japan Aerospace Exploration Agency、2.University of Tokyo、3.Chiba University、4.Nagoya University)