Eccentricity, semimajor axis, and surface temperature evolution for three nominal Solar System simulations with 500 planetesimals per simulation and varying planetesimal formation locations. In the top panel, the planetesimals are initiated between 1 and 3 Hill radii away from the planets, in the middle panel between 3 and 5 Hill radii, and in the bottom panel between 5 and 7 Hill radii. The solid black lines mark the perihelia of the planets. Eccentricity excitation occurs much earlier and at a much faster speed for planetesimals initiated close to the planets. When the planetesimals are initiated between 5 and 7 Hill radii away from the planets, a population of planetesimals still remain around their birth location at the end of the simulation.