Figure 4. Outwards Evolution of Saturnian Satellites. (a) Evolution driven by dissipation in Saturn with Qp set to a constant value. The same plot applies to any constant Qp, with the timescale scaled by Qp/16000. Vertical lines denote selected resonances with orbits on converging (green) and diverging (red) trajectories; (b) As for (a), but using the “resonance-locking” approach of Fuller et al. (2016) in which the effective Qp is higher for satellites with shorter periods (see text).