1. Graduate School of ScienceKyoto University Kyoto Japan
2. The University of Tokyo Tokyo Japan
3. Osaka University Osaka Japan
4. Japan Aerospace Exploration Agency Tokyo Japan
5. Institute for Space-Earth Environmental Research Nagoya University Nagoya Japan
6. The Johns Hopkins University Applied Physics Laboratory Laurel MD USA
7. Department of Physical and Chemical Sciences University of L'Aquila L'Aquila Italy
8. Mining and Geological Survey of Hungary Budapest Hungary
9. International Center for Space Weather Science and Education Kyushu University Fukuoka Japan
10. National Institute of Polar Research Tachikawa Japan
11. National Institute of TechnologyKagoshima College Kagoshima Japan