1. State Key Laboratory of Space Weather, National Space Science Center; Chinese Academy of Sciences; Beijing China
2. College of Earth Sciences; University of Chinese Academy of Sciences; Beijing China
3. Max-Planck-Institut für Extraterrestrische Physik; Garching Germany
4. Institute of Space Sciences; Shandong University; Weihai China
5. Department of Space Science and CSPAR; University of Alabama in Huntsville; Huntsville AL USA