Table 2: Other model input parameters.

Parameter	Symbol	Value or range	Units	Notes or references
Mass of Saturn	M	5.68 × 1026	kg
Radius of Saturn	Rp	58232	km
Final ring mass	Mring	1019 − 1020	kg	Robbins et al.35
Ring inner edge	Rin	92000	km	Inner edge of B ring
Ring outer edge	Rout	140000	km	Radius of F ring
Saturn’s initial tidal quality factor	Q	2452.8–200000		Lainey et al.2
Initial eccentricity	e	0.016		Canup5
Initial rock grain density	ρr	2900	kg m−3	Hydrated rock
Initial ice grain density	ρi	985	kg m−3
Water volume fraction in the core	Xice	0.25
Initial bulk porosity	Φ	0.2
Initial temperature	Tinit	100	K