1. Solar-Terrestrial Environment Laboratory; Nagoya University; Nagoya, Aichi Japan
2. Heliophysics Science Division; NASA Goddard Space Flight Center; Greenbelt Maryland USA
3. Applied Physics Laboratory; Johns Hopkins University; Laurel Maryland USA
4. Department of Geophysics; Kyoto University; Kyoto Japan
5. Institute of Space and Astronautical Science; Japan Aerospace Exploration Agency; Sagamihara, Kanagawa Japan
6. Data Analysis Center for Geomagnetism and Space Magnetism, Graduate School of Science; Kyoto University; Kyoto Japan
7. Institute of Space Science; National Central University; Jhongli Taiwan
8. Space Sciences Laboratory; University of California; Berkeley California USA