Tidal changes in the rotational state of asteroids asevolution factor of the magnitude of the Yarkovsky effect

We examined possible tidal-induced leaps in the rotational state parameters of the asteroids during their planet approaches. These dramatic changes in the rotational period and obliquity lead to significant changes in orbital dynamics due to the corresponding Yarkovsky acceleration $A_2$ leap. Our numerical simulations of asteroid rotational parameters evolution due to their planet encounters support the conclusion that significant $A_2$ changes can happen when planetocentric distance is less than ten planetary radii. We have found nine asteroids with anomalous $A_2$ values. However, there is no exact evidence that these$A_2$ discrepancies can be explained by tidal effects only.