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S
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1698
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W
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61 km
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''Unknown''
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190
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is a
Lunar Impact Crater that lies on the
Far Side of the
Moon . It is located to the northwest of the large
Oppenheimer Crater , and to the east-southeast of
Orlov Crater .
This crater lies across the eastern rim of the larger satellite crater 'Rumford T'. The perimeter is somewhat rounded and
Polygon al in shape, with an outward protrusion along the eastern edge. The inner walls have slumped along the eastern half to produce a shelf along the sides. The interior floor has a lower
Albedo than the surrounding
Terrain , and there is a small central ridge near the mid-point.
By convention these features are identified on lunar maps by placing the letter on the side of the crater mid-point that is closest to Rumford crater.