Hamilton D=58 km Center: 43°S, 84°E Count Area: 209 km^2 Observed Density (@ 1km): 9800 ± 6900 Age: 3.8 ± 0.1 (+sec: 3.9) Stoffler epoch: Early Imbrian Fit Density (@ 1km): 14600 ± 2300 PF fit: OK Age calculation notes: Minimum number of data points. Large crater bins fall below MPF, otherwise fit good. Used Melosh gravity scaling. USGS geology: Eratosthenian Wilhelms: Eratosthenian Floor material: Crater is deep. Small peak that is a cluster of hills, but doesn't look very eroded. Most is hummocky with a few small smooth areas. Possible collapse in the north (avoided). Best guess is original and impact melt. Geology Observations: Ejecta blanket visible, but no rays observed in WAC. Secondary field partially visible. Rim slightly eroded, more so for the northern portion - may be covered by ejecta from younger cratered formed just to the north. A couple of secondary chains/clusters with craters up to a km in size. Surrounded by craters filled with mare. SFD Observations: Dominated by class 3, then class 4. Flat to steep distribution. No shallow "right ear". Classes have similar shape. Slope(Diff)=-4.0 ± 0.5 Secondaries appear shallower. Slope(sec)=-3.1 ± 0.0 Last Edited by MRK 1/13/2014