Heat maps of the dynamical evolution of planetesimals showing the semi-major axis versus perihelion for all three models: GT (top), ABI (middle), and DD (bottom). The density increases from blue to red, with blue dots indicating few planetesimals ventured in a specific region of phase space, and red indicating that many remained in said region. The planets are indicated by large black bullets. The letters V and C stand for Vesta and Ceres.