Institute of Space Science, National Central University, No.300, Jhongda Rd., Jhongli, 320, Taiwan ; Department of Physics, National Cheng Kung University, No.1, University Rd., Tainan, 720, Taiwan
Department of Physics, National Cheng Kung University, No.1, University Rd., Tainan, 720, Taiwan
Department of Physics, National Cheng Kung University, No.1, University Rd., Tainan, 720, Taiwan
Department of Physics, National Cheng Kung University, No.1, University Rd., Tainan, 720, Taiwan
Department of Physics, National Cheng Kung University, No.1, University Rd., Tainan, 720, Taiwan
Department of Physics, National Cheng Kung University, No.1, University Rd., Tainan, 720, Taiwan
Department of Physics, National Cheng Kung University, No.1, University Rd., Tainan, 720, Taiwan
Department of Physics, National Cheng Kung University, No.1, University Rd., Tainan, 720, Taiwan
Institute of Space Science, National Central University, No.300, Jhongda Rd., Jhongli, 320, Taiwan
Space Sciences Laboratory, University of California, Berkeley, 7 Gauss Way, Berkeley, CA 94720-7450, United States
Space Sciences Laboratory, University of California, Berkeley, 7 Gauss Way, Berkeley, CA 94720-7450, United States
Department of Geophysics, Tohoku University, Aramaki-aoba, Aoba-ku, Sendai, 980- 8578, Japan