New data and data analyses, modeling capabilities, and theories have improved our understanding of satellite-magnetosphere interactions in recent years. It is a good time to take stock of the current state of knowledge. This session invites presentations that deal with all aspects of the influences of active and inert satellites on the magnetospheres of Jupiter and Saturn, as well as the effects of the magnetospheres on the moons themselves. Topics can include, for instance, consequences to the plasma flow near the body, the generation of current systems, mass loading and microsignatures. We also welcome talks focused on modifications of satellite surfaces by magnetospheric weathering processes. For example, the generation of atmospheres and extended or even circumplanetary tori would be appropriate. Comparisons between the satellite-magnetosphere interactions in the two systems will be given priority.