Robert J Strangeway¹, Christopher T Russell², Brian J Anderson³, James M Weygand¹, William R Paterson⁴, Paul Tenfjord⁵, Roy B Torbert⁶ and James L Burch⁷, (1)University of California Los Angeles, IGPP/EPSS, Los Angeles, CA, United States, (2)University of California Los Angeles, Department of Earth Planetary and Space Sciences, Los Angeles, CA, United States, (3)Johns Hopkins Univ, Laurel, MD, United States, (4)NASA Goddard Space Flight Center, Geospace Physics Laboratory, Greenbelt, MD, United States, (5)University of Bergen, Birkeland Centre for Space Science, Bergen, Norway, (6)Univ New Hampshire, Durham, NH, United States, (7)Southwest Research Institute San Antonio, San Antonio, TX, United States