9:15 AM - 9:30 AM
*Yongxin Gao1, Hengshan Hu2, Xiaofei Chen3 (1.Hefei University of Technology of China, 2.Department of Astronautics and Mechanics, Harbin Institute of Technology, Harbin, China, 3.School of Earth and Space Sciences, University of Science and Technology of China, Hefei, China)