|Three similar and relatively small impact craters (125-180 meters in diameter) in the nearside southern highlands may have formed in a contemporaneous impact event. LROC Narrow Angle Camera (NAC) observation M106827539L, LRO orbit 884, September 5, 2009; angle of incidence 27.64° at 1.09 meters resolution; field of view 995 meters wide, from 106.57 km [NASA/GSFC/Arizona State University].|
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These three craters, located at 9.665°S, 7.646°E, appear to have formed more or less at the same time, certainly within a few minutes of each other. The southwest crater is 180 m diameter; the center crater is 150 m; and the northeast crater is 125 m across.
From the northeast crater center to the southwest crater centers, they cover about 450 m.
The projectiles were traveling from the east-northeast (the right side of the frame) and probably struck the surface at a relatively low angle, as indicated by the asymmetric ejecta patterns and the orientation of the ejecta rays. Bright ejecta extends as much as 1 km from the crater center.
|Same scene as above in afternoon lighting (angle of incidence 79.38°). The low Sun accentuates the subtle topography associated with the impact craters. LROC NAC observation M102107709R, spacecraft orbit 225, July 13, 2009; field of view 711 meters at 1.01 meters resolution from 98.73km [NASA/GSFC/Arizona State University].|
|Experimental double simultaneous impact crater in the Ames Vertical Gun, from Oberbeck et al. (1972) Apollo 16 Preliminary Science Report, Fig 29-71, "Impact Craters Produced Simultaneously" [NASA/ALSJ].|
Explore the entire LROC NAC frame, HERE.
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