1. Space Science Center University of New Hampshire Durham NH USA
2. Southwest Research Institute San Antonio TX USA
3. Department of Earth, Planetary and Space Sciences University of California Los Angeles CA USA
4. NASA Goddard Space Flight Center Greenbelt MD USA
5. Denali Scientific Fairbanks AK USA
6. Department of Geophysics, Graduate School of Science Kyoto University Kyoto Japan
7. Department of Communication Engineering and Informatics University of Electro‐Communications Tokyo Japan