A Comprehensive Set of Juno In Situ and Remote Sensing Observations of the Ganymede Auroral Footprint

Jupiters satellite auroral footprints result from the interaction between the co-rotating iogenic plasma and the Galilean moons. Since its arrival at Jupiter in 2016, Juno continues to revolutionize the field of moon-magnetosphere interaction by providing, for each perijove, multi-instrument datasets combining in-situ and remote-sensing measurements of the magnetic fluxtubes connecting each satellite with their auroral footprints. So far, the Juno measurements favor an Alfvenic acceleration mechanism generating both the main auroral footprint spots and the footprint tail emissions. This work focuses on the Ganymede fluxtube crossing of PJ30 (8 Nov 2020), where Juno transited through a region connected to Ganymedes leading auroral spot measured at 411 +/- 42 kR by Juno-UVS, while Juno-JADE recorded a highly structured downward precipitating electron energy fluxes peaking up to 327 mW/m2. We present a multi-instrument characterization of this event combining the remote and in-situ instruments on Juno. Based on the Ganymede footprint spot morphology and inter-spot distance evolution by Juno-UVS, we conclude that Juno transited through the fluxtube connected with Ganymedes Main Alfven Wing footprint.