1. Key Laboratory of Earth and Planetary Physics Institute of Geology and Geophysics, Chinese Academy of Sciences Beijing China
2. High Altitude Observatory National Center for Atmospheric Research Boulder Colorado USA
3. CAS Key Laboratory of Geospace Environment, School of Earth and Space Sciences University of Science and Technology of China Hefei China
4. Applied Physics Laboratory The Johns Hopkins University Laurel Maryland USA
5. COSMIC Program Office University Corporation for Atmospheric Research Boulder Colorado USA