Craters on asteroids: Reconciling diverse impact records with a common impacting population

O'Brien and Greenberg [O'Brien, D.P., Greenberg, R., 2005. Icarus 178, 179-212] developed a self-consistent numerical model of the collisional and dynamical evolution Of the main-belt and NEA populations that was tested against a diverse range of observational and theoretical constraints. In this paper. we use those results to update the asteroid cratering model of Greenberg et al. [Greenberg, R., Nolan, M.C., Bottke, WE. Kolvoord. R.A.. Veverka. J.. 1994. Icarus 107, 84-97; Greenberg, R., Bottke, W.F., Nolan, M., Geissler, P., Petit, J., Durda, D.D., Asphalt-, E., Head, J., 1996. Icarus 120, 106-118], and show that the main-belt asteroid Population from the O'Brien and Greenberg collisional/dynamical evolution modeling is consistent with the crater records on Gaspra, Ida, Mathilde, and Eros, the four asteroids that have been observed by spacecraft. (c) 2006 Elsevier Inc. All rights reserved.