*沖山 太心¹、関 華奈子¹、中村 勇貴¹、Lillis Robert²、Rahmati Ali²、Larson Davin²、DiBraccio Gina³、Schneider Nicholas⁴、Jain Sonal⁴、Curry Shannon⁴ (1.東京大学大学院理学系研究科、2.Space Sciences Laboratory, University of California, Berkeley, California, USA、3.Solar System Exploration Division, NASA Goddard Space Flight Center, Greenbelt, MD, USA、4.The University of Colorado at Boulder, Boulder, USA)