Yi Qi, University of California, Los Angeles, Earth, Planetary, and Space Sciences, Los Angeles, CA, United States, Christopher T Russell, University of California Los Angeles, Department of Earth Planetary and Space Sciences, Los Angeles, CA, United States, Robert J Strangeway, UCLA IGPP/ESS, Los Angeles, CA, United States, Roy B Torbert, Univ New Hampshire, Durham, NH, United States, William R Paterson, NASA Goddard Space Flight Center, Geospace Physics Laboratory, Greenbelt, MD, United States, Barbara L Giles, NASA Goddard Space Flight Center, Greenbelt, MD, United States and James Burch, Southwest Research Institute, San Antonio, TX, United States