Moiseev

D=62 km
Center: 9°N, 103°E

Count Area: 226 km^2
Observed Density (@ 1km): 24000 ± 9900
Age: 3.9 ± 0.1 (+sec: 3.9)
Stoffler epoch: Nectarian
Fit Density (@ 1km): 21700 ± 2700
PF fit: OK

Age calculation notes:
Large crater bins fall below MPF and the smallest diameter bin above. Used Melosh gravity scaling.

USGS geology: 
Eratosthenian

Wilhelms: 
Eratosthenian

Floor material: 
Crater is deep. Moderate peak that is a cluster of hills that appears moderately eroded. Most is hummocky with a smooth area to NW. Possible collapse in the SE (avoided). Best guess is original and impact melt.

Geology Observations: 
Ejecta blanket visible, but eroded and no rays observed in WAC. Rim slightly eroded. Formed on rim of older crater to north. A few of secondary chains/clusters with small craters up to 800 m in size. Surrounded by craters filled with mare. Does this geology seem consistent with ancient age computed? Perhaps secondaries more prevalent than originally thought?

SFD Observations: 
Dominated by degraded classes fro small craters (< 1 km) and fresher classes for larger diameters. Flat to steep distribution. No shallow "right ear". Classes have similar shape. Slope(Diff)=-4.0 ± 1.0 Secondaries appear to have similar shape. No slope calculated for secondaries - only two points.


Last Edited by MRK 1/13/2014