1. Chongqing University of Arts and Sciences, Chongqing 402160, P.R. China
2. Yunnan Observatories, Chinese Academy of Sciences, Kunming 650216, P. R. China
3. College of Science, China Three Gorges University, Yichang 443002, P. R. China
4. Key Laboratory of Geospace Environment, Chinese Academy of Sciences, University of Science and Technology of China, Hefei 230026, P. R. China
5. CAS Key Laboratory of Solar Activity, National Astronomical Observatories, Beijing 100012, P. R. China
6. University of Chinese Academy of Sciences, Beijing 100049, P. R. China
7. Center For Astrophysics, Guangzhou University, Guangzhou 510006, P. R. China