1. Key Laboratory of Earth and Planetary Physics; Institute of Geology and Geophysics, Chinese Academy of Sciences; Beijing China
2. College of Earth and Planetary Sciences; University of Chinese Academy of Sciences; Beijing China
3. Institutions of Earth Science; Chinese Academy of Sciences; Beijing China
4. Applied Physics Laboratory; The Johns Hopkins University; Laurel MD USA
5. Space Research Institute; Russian Academy of Sciences; Moscow Russia
6. Harbin Institute of Technology; Shenzhen China
7. Space Science Institute, School of Astronautics; Beihang University; Beijing China
8. RAL, Chilton; Oxfordshire UK