1. Institute of Astronomy, National Central University, Taoyuan, 32001, Taiwan
2. Department of Physics, National Dong Hwa University, No. 1, Sec. 2, Da Hsueh Rd. Shoufeng, Hualien 97401, Taiwan
3. DLR Institute of Planetary Research, Berlin, Germany
4. Yunnan Observatories (YNAO), Chinese Academy of Sciences, Kunming 650216, China
5. Key Laboratory of the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming 650216, China