1. Department of Complexity Science and Engineering, Graduate School of Frontier Sciences The University of Tokyo Chiba Japan
2. Laboratory for Atmospheric and Space Physics University of Colorado Boulder Boulder CO USA
3. Zentrum für Astronomie und Astrophysik, Technische Universität Berlin Berlin Germany
4. Department of Geophysics, Graduate School of Science Tohoku University Sendai Miyagi Japan
5. Institute of Space and Astronautical Science Japan Aerospace Exploration Agency Sagamihara Kanagawa Japan
6. Department of Earth and Planetary Science, Graduate School of Sciences The University of Tokyo Tokyo Japan
7. Planetary Exploration Research Center Chiba Institute of Technology Chiba Japan
8. Space Information Center, Hokkaido Information University Ebetsu Hokkaido Japan