Fig. 2: The Terrain Camera images of individual craters and their cumulative size-frequency distributions, for which ages are identical to that of Copernicus crater.
From: Asteroid shower on the Earth-Moon system immediately before the Cryogenian period revealed by KAGUYA
a Mosaics of the Terrain Camera images of individual craters shown in simple cylindrical map projection and b the cumulative size-frequency distributions, from which ages are identical to that of Copernicus crater. The small craters around the central main crater are counted for the determination of the central crater itself. b Shows their cumulative size-frequency distributions. Error bars are estimated by the formula (n ± n1/2)/A, where n is the cumulative number of craters and A is the counted area.
