1. CAS Key Laboratory of Geospace Environment, Department of Geophysics and Planetary Science University of Science and Technology of China Hefei China
2. Harbin Institute of Technology Shenzhen China
3. Space Research Institute Austrian Academy of Sciences Austria
4. Department of Earth, Planetary and Space Sciences University of California Los Angeles CA USA
5. NASA, Goddard Space Flight Center Greenbelt MD USA
6. Southwest Research Institute San Antonio TX USA