1. Data Analysis Center for Geomagnetism and Space Magnetism Graduate School of Science Kyoto University Kyoto Japan
2. Institute for Space‐Earth Environmental Research Nagoya University Nagoya Japan
3. Institute of Space and Astronautical Science Japan Aerospace Exploration Agency Sagamihara Japan
4. Graduate School of Natural Science and Technology Kanazawa University Kanazawa Japan
5. Graduate School of Science Tohoku University Sendai Japan
6. Graduate School of Science University of Tokyo Tokyo Japan
7. Graduate School of Science Osaka University Toyonaka Japan
8. Graduate School of Engineering Kitakyushu Japan