1. Shandong Provincial Key Laboratory of Optical Astronomy and Solar-Terrestrial Environment, School of Space Science and Physics; Shandong University; Weihai China
2. State Key Laboratory of Space Weather; National Space Science Center (NSSC), Chinese Academy of Sciences; Beijing China
3. CAS Key Laboratory of Geospace Environment, School of Earth and Space Sciences; University of Science and Technology of China; Hefei China
4. Swedish Institute of Space Physics; Uppsala Sweden
5. Institute of Space and Astronautical Science; Japan Aerospace Exploration Agency (JAXA); Sagamihara Japan
6. Geophysical Institute; University of Alaska Fairbanks; Fairbanks AK USA
7. Mullard Space Science Laboratory; University College London; Dorking UK
8. School of Earth and Space Sciences; Peking University; Beijing China