Initial state of the TNO reservoirs for different Tisserand parameters, T, as indicated in the top-right corner of each panel. Hot TNOs are shown in red and cold TNOs in blue. The solid orange and blue curves in the inclination panels are, respectively, the Tisserand inclination pathway (2) and the initial inclination of circular orbits (5). In the eccentricity panels, the curves indicate perihelia that match the four giant planets’ semimajor axes.