1. Department of Geophysics, Graduate School of Science Kyoto University Kyoto Japan
2. Research Institute for Sustainable Humanosphere Kyoto University Uji Japan
3. Solar‐Terrestrial Environment Laboratory Nagoya University Nagoya Japan
4. Institute of Space and Astronautical Science Sagamihara Japan
5. Data Analysis Center for Geomagnetism and Space Magnetism Graduate School of Science Kyoto University, Kyoto, Japan
6. Institute of Geophysics and Planetary Physics University of California Los Angeles California USA