Plutarch

D=70 km
Center: 24¡N, 79¡E

Count Area: 511 km^2 (NAC used: )
Observed Density (@ 1km): not observed
Age: 1.0 ± 0.4 (+sec: )
Stoffler epoch: Eratosthenian
Fit Density (@ 1km): 1200 ± 500
PF fit: poor

Age calculation notes:
Only 2 data points and neither of them fall on the line very well - steeper than MPF. Used Melosh gravity regime.

USGS geology: 
Eratosthenian

Wilhelms: 
Eratosthenian

Floor material: 
Best guess is original. Has hummocky and smooth areas, which are likely melt. Peak is large and sharp. Crater is deep.

Geology Observations: 
Ejecta blanket and secondaries visible, but no bright rays. Large, sharp central peak complex. Rim sharp, except for for two new craters that impacted at rim. No secondaries observed on floor in WAC mosaic. Floor seems younger (less cratered) than would be expected with two large craters on the rim. Two possible wall collapses in west and south (avoided), possibly caused by the craters on the rim. Also formed on top of an older crater or two in this location. Located on mare and surrounded by some filled craters.

SFD Observations: 
Dominated by classes 3 and 4. Class 2 at lowest density. Very steep distribution. Slope(Diff)=-7.8 ± 0.7

Last Edited by MRK 1/9/2014