Statistically projected location of the DAM sources in longitude and latitude. The dotted and triangular markers show the median locations of the starting footprints of active field lines for Io and non-Io events, respectively. The color-coded arrows indicate the trajectory of the footprints. The dots with orange edges represent the Io-related events observed by the NDA. The yellow-to-brown color bar indicates the local time of the source locations, reflecting whether the emissions are on the dawn or dusk side of the Sun’s view. The histogram at the top indicates the distribution of longitude averages in the source region in 30° bins.