Orbital evolution of 66P and its 200 clones for 10⁵ yr backwardin time from January 1, 2019. From the top to the bottom: the closest approaches with Jupiter, semi-major axis, eccentricity, inclination, perihelion, and aphelion distance. In all cases the red lines correspond to the evolution of the nominal comet 66P, the black lines are the mean values of the whole set of 200 clones plus the nominal comet, and the gray lines show the individual evolution for each clone. In the perihelion panel the black cross indicates the time of the capture, t_cap, and the two horizontal blue bars correspond to q = 1.3 and q = 2.5 au. The initial orbital elements were taken from the JPL Small-Body Data Browser.