SM056-0005
Aurora to Magnetodisk Mapping: Connecting UV Emissions to Events in Jupiter’s Magnetosphere

Wednesday, 16 December 2020
Poster
Thomas K Greathouse1, Randy Gladstone1, Marissa F. Vogt2, Maarten Versteeg1, Vincent Hue1, Bertrand Bonfond3, Denis C Grodent3, Jean-Claude M. C. Gerard3, Joshua Kammer1, Rohini Giles4, Michael Wayne Davis1, Scott J Bolton1, Steven Levin5 and John E P Connerney6,7, (1)Southwest Research Institute, San Antonio, TX, United States, (2)Boston University, Center for Space Physics, Boston, United States, (3)Université de Liège, LPAP - STAR Institute, Liege, Belgium, (4)Southwest Research Institute, San Antonio, United States, (5)Jet Propulsion Laboratory, Pasadena, CA, United States, (6)NASA Goddard Space Flight Center, Greenbelt, MD, United States, (7)Space Research Corporation, Annapolis, MD, United States
Abstract:
The Juno Mission carries with it an ultraviolet spectrograph, Juno UVS, to map Jupiter’s auroral emissions from an unprecedented vantage point above Jupiter’s poles. With views of the aurora at all local times, Juno UVS allows for the first comprehensive compilation of the local time variations of the auroral emissions. Using the Vogt et al. (2011, JGR 116, A03220; 2015, JGR 120, 2584-2599) magnetic flux mapping approach we invert the observed auroral emission maps into maps of those emissions in magnetodisk coordinates. In this way, we are able to reconstruct the approximate (depending on the accuracy of the Vogt mapping and JRM09 magnetic field model) structure and evolution of the source regions causing the auroral emissions leading to further insight on the dynamics of the middle to outer magnetosphere. We present mission average disk projected maps, those from assorted perijoves (close flyby of Jupiter by Juno on its highly elliptical orbit of ~53 days), and discuss their temporal evolution over timescales of minutes and hours (a single perijove) to months and years (perijove to perijove).
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