1. Department of Space Science and Application, College of Astronautics, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
2. Key Laboratory of Planetary Sciences, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210008, China
3. School of Astronomy and Space Science, University of Science and Technology of China, Hefei 230026, China
4. Institute of Space Weather, School of Math & Statistics, Nanjing University of Information Science & Technology, Nanjing 210044, China