Elizabeth (Lily) Hanson¹, Oleksiy V. Agapitov¹, Forrest Mozer¹, Vladimir Krasnoselskikh², Stuart D Bale³, Levon A Avanov⁴, Barbara L Giles⁴ and Yuri V Khotyaintsev⁵, (1)University of California Berkeley, Berkeley, CA, United States, (2)Laboratoire de Physique et Chimie de l'Environnement et de l'Espace, Orléans Cedex 2, France, (3)University of California, Berkeley, Space Sciences Laboratory, Berkeley, CA, United States, (4)NASA Goddard Space Flight Center, Greenbelt, MD, United States, (5)Swedish Institute of Space Physics, Uppsala, Sweden