Minghui Zhu¹, Yiqun Yu², Xingbin Tian¹, Shreedevi Porunakatu Radhakrishna³ and Vania K Jordanova², (1)Beihang University, Beijing, China, (2)Los Alamos National Laboratory, Los Alamos, NM, United States, (3)Space Physics Laboratory, Trivandrum, India