1. International Center for Space Weather Science and Education Kyushu University Fukuoka Japan
2. Planetary Plasma and Atmospheric Research Center Tohoku University Sendai Japan
3. Meteorological College Kashiwa Japan
4. National Institute of Polar Research Tachikawa Japan
5. Research Institute for Sustainable Humanosphere Kyoto University Kyoto Japan
6. Space Environment Laboratory National Institute of Information and Communications Technology Tokyo Japan