1. CAS Key Laboratory of Geospace Environment School of Earth and Space Sciences University of Science and Technology of China Hefei China
2. State Key Laboratory of Space Weather Chinese Academy of Sciences Beijing China
3. Mengcheng National Geophysical Observatory University of Science and Technology of China Hefei China
4. CAS Center for Excellence in Comparative Planetology University of Science and Technology of China Hefei China
5. Geophysical Institute University of Alaska Fairbanks Alaska AK USA