Yingjuan Ma, University of California Los Angeles, Los Angeles, United States, Robert J Lillis, Space Sciences Laboratory, University of California Berkeley, Berkeley, United States, Christopher M Fowler, West Virginia University, Department of Physics and Astronomy, Morgantown, United States, Jasper S Halekas, University of Iowa, Physics and Astronomy, Iowa City, United States, Shaosui Xu, University of California Berkeley, Space Sciences Laboratory, Berkeley, United States, Gabor Toth, University of Michigan, Climate and Space Sciences and Engineering, Ann Arbor, United States, Ying-Dong Jia, UCLA-IGPP, Los Angeles, CA, United States, Xiaohua Fang, University of Colorado at Boulder, Boulder, United States, Andrew F Nagy, University of Michigan Ann Arbor, Ann Arbor, MI, United States, Janet G Luhmann, University of California Berkeley, Space Sciences Laboratory, Berkeley, CA, United States, Gina A DiBraccio, University of Michigan, Ann Arbor, United States, David A Brain, University of Colorado at Boulder, Laboratory for Atmospheric and Space Physics, Boulder, United States and Shannon Curry, University of Colorado Boulder, Laboratory for Atmospheric and Space Physics, Boulder, United States