College of Aerospace Science and Engineering, National University of Defense Technology, Changsha 410073;
Department of Space Physics, Wuhan University, Wuhan 430072;
College of Aerospace Science and Engineering, National University of Defense Technology, Changsha 410073;
Department of Space Physics, Wuhan University, Wuhan 430072;
Nanchang University, Nanchang 330031;
College of Aerospace Science and Engineering, National University of Defense Technology, Changsha 410073;