1. School of Space Science and Physics; Shandong University; Weihai China
2. Cosmic Ray Division; Yerevan Physics Institute; Yerevan Armenia
3. Space and Plasma Physics, School of Electrical Engineering; Royal Institute of Technology; Stockholm Sweden
4. Belgian Institute of Space Aeronomy; Space Plasma; Brussels Belgium
5. Applied Physics Laboratory; The Johns Hopkins University; Laurel Maryland USA
6. School of Physics and Astronomy; University of Southampton; Southampton UK
7. Institute of Space Physics and Applied Technology; Peking University; Beijing China
8. Institute of Geology and Geophysics; Chinese Academy of Sciences; Beijing China
9. Mullard Space Science Laboratory; University College London; London UK