1. CAS Key Laboratory of Geospace Environment, School of Earth and Space Sciences University of Science and Technology of China Hefei China
2. Mengcheng National Geophysical Observatory University of Science and Technology of China Hefei China
3. CAS Center for Excellence in Comparative Planetology Hefei China
4. High Altitude Observatory National Center for Atmospheric Research Boulder CO USA
5. MIT Haystack Observatory Westford MA USA
6. Institute of Geology and Geophysics Chinese Academy of Sciences Beijing China