Markham (no image)
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- Name: Markham
- Diameter (km): 71.8
- Latitude: -4.1°
- Longitude: 155.6°
- Confidence Level: 1
- Elev surrounding terrain (km): 6051.97
- Crater density per 1x10^6 km^2: 1.90986
- DN inside crater: 109
- DN outside crater: 92
- DN difference: 17
- Continuous ejecta radius (km): 80.9
- Flow length, dist from rim (km): 332.6
- Dark halo diam (km): 190
- Ejecta completeness (radial): 0.8
- Rim completeness: 1
- Planform: c
- Morphologic class: 4
- Central structure diam (km): 27.3
- Wall terracing: t
- Wall width (km): 5.9
- Multiple crater: s
- Floor reflectivity: d
- Parabolic feature: n
- Direction impactor travelling: ne
- Multiple asteriods grp #:
- Terrain: p
- Interior modification: y
- Exterior modification: m
- Tectonically deformed: n
- Degradation state: 1
- Comments: