Obliquity (panel a), precession frequency (panel b), and diffusion of the precession frequency (panel c) for Vesta on [−40 : 0] Myr with respect to the precession constant. In panel a the maximum, mean, and minimum obliquities are, respectively, in red, black, and blue. In panel c the rectangle A represents the precession constants for with a vertical red line for and B the same but before the two giant impacts.