*Rima Kamei¹, Kanako Seki¹, Kunihiro Keika¹, Robin Ramstad², David A. Brain², Takuya Hara³, James P. McFadden³, Gwen Hanley³, Christopher Fowler⁴, Jasper S. Halekas⁵, Gina A. DiBraccio⁶, Shannon M. Curry² (1.Department of Earth and Planetary Science, Graduate School of Science, The University of Tokyo, 2.Laboratory for Atmospheric and Space Physics, University of Colorado, 3.Space Sciences Laboratory, University of California, 4.Department of Physics and Astronomy, West Virginia University, 5.Department of Physics and Astronomy, University of Iowa, 6.NASA Goddard Space Flight Center)