*Yuki Kimura¹, Toshiaki Tanigaki², Takeharu Kato³, Kiyotaka Nakano⁴, Satoshi Anada³, Ryuji Yoshida³, Kazuo Yamamoto³, Tetsuya Akashi², Fumiaki Ichihashi², Hiroto Kasai², Tomoki Nakamura⁵, Masahiko Sato^6,7,8, Shogo Tachibana^7,8, Hayabusa2 initial analysis core team⁸ (1.Hokkaido University, 2.Hitachi, Ltd., 3.Japan Fine Ceramics Center, 4.Hitachi High-Tech Corporation, 5.Tohoku University, 6.Tokyo University of Science, 7.The University of Tokyo, 8.Japan Aerospace Exploration Agency)

*Yoshihiro Yokoyama¹, Tanja Rahim¹, Jean-Claude Tinguely¹, Sveinung Viggo Olawn¹, Yngve Eilertsen¹, Yuki Kimura², Kyoko Kitakami Tanaka³, Ingrid Brigitte Mann¹ (1.UiT The Arctic University of Norway, 2.Institute of Low Temperature Science, Hokkaido University, 3.Graduate School of Science, Tohoku University)

Kaito Koizumi¹, *Hiromu Nakagawa¹, Kyoko Kitakami Tanaka², Naoki Terada¹, Hitoshi Fujiwara³, Takuo T. Tsuda⁴, Yuki Kimura⁵, Yasumasa Kasaba⁶, Shohei Aoki⁷, Ann Carine Vandaele^8,1, Ian Thomas⁸, Bojan Ristic⁸, Frank Daerden⁸, Zachary Flimon⁸, Yannick Willame⁸, Loïc Trompet⁸, Séverine Robert⁸, Jonathon Mason⁹, Manish Patel⁹, Giuliano Liuzzi¹¹, Giancarlo Bellucci¹⁰, Jose Juan Lopez-Moreno¹² (1.Department of Geophysics, Graduate School of Science, Tohoku University, 2.Astronomical Institute, Graduate School of Science, Tohoku University, 3.Education and Research Center for Sustainable Development/Faculty of Science and Technology, Seikei University, 4.The University of Electro-Communications, 5.Institute of Low Temperature Science, Hokkaido University, 6.Planetary Plasma and Atmospheric Research Center, Tohoku University, 7.Department of Complexity Science and Engineering, Graduate School of Frontier Sciences, The University of Tokyo, 8.Royal Belgian Institute for Space Aeronomy (BIRA-IASB), 9.School of Physical Sciences, The Open University, 10.Institute di Astrofisica e Planetologia Spaziali (IAPS/INAF), 11.School of Engineering, University of Basilicata, 12.Instituto de Astrofisica de Andalucia (IAA/CSIC))

Shinnosuke Ishizuka^1,2, *Yuki Kimura³, Tomoya Yamazaki³, Michihiro Mochida² (1. Institute for Advanced Research, Nagoya University, 2.Institute for Space-Earth Environmental Research, Nagoya University, 3.Institute of Low Temperature Science, Hokkaido University)

*Yuki Kimura¹, Kyoko Kitakami Tanaka⁴, Shinsuke Takeuchi^2,3, Yuko Inatomi^2,3 (1.Institute of Low Temperature Science, Hokkaido University, 2.Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, 3.School of Physical Sciences, SOKENDAI, 4.Astronomical Institute, Tohoku University)

*Yuki Kimura¹, Tomoya Yamazaki¹, Yoshinori Furukawa¹ (1.Institute of Low Temperature Science, Hokkaido University)

*Kanji Sakai¹, Yuki Kimura¹, Tomoya Yamazaki¹ (1.Hokkaido University)

*Tomoya Yamazaki¹, Yuki Kimura¹, Michihiro Mochida² (1.Institute of Low Temperature Science Hokkaido University, 2.Institute for Space-Earth Environmental Research Nagoya University )

*Hiromasa Niinomi¹, Tomoya Yamazaki², Hiroki Nada³, Tetsuya Hama⁴, Tomoya Oshikiri^1,5, Masaru Nakagawa¹, Yuki Kimura² (1.Institute of Multidisplinary Reseach for Advanced Materials, Tohoku University, 2.Institute of Low Temperature Science, Hokkaido University, 3.Graduate School of Engineering, Tottori University, 4.Komaba Institute for Science, The University of Tokyo, 5.Research Institute for Electronic Science, Hokkaido University)