Robert Ergun¹, Narges Ahmadi², Garyfallia Kromyda², Steven J Schwartz¹, Julia E Stawarz³, Katherine Goodrich⁴, Alexandros Chasapis⁵, Roy B Torbert⁶, James Burch⁷, Drew L Turner⁸ and Robert J Strangeway⁹, (1)Laboratory for Atmospheric and Space Physics, Boulder, CO, United States, (2)University of Colorado at Boulder, LASP, Boulder, CO, United States, (3)Imperial College London, London, United Kingdom, (4)University of California Berkeley, Berkeley, CA, United States, (5)Laboratory for Atmospheric and Space Physics, Boulder, United States, (6)Univ New Hampshire, Durham, NH, United States, (7)Southwest Research Institute, San Antonio, TX, United States, (8)The Aerospace Corporation, El Segundo, CA, United States, (9)Univ California, Los Angeles, CA, United States