Survival times of the test particles from different discs, all extending from 10R_P < a < 55R_P, for the dissipation parameter A = 10. We use different symbols and colours for initially coplanar and inclined discs as well as for different initial eccentricities of Charon’s orbit. We do not consider J₂ effects, and the Charon mass is conserved during the integrations (see the text for more details).