MESSENGER was just 184 km above Mercury's surface when it snapped this view of a hollow in Ahmad Baba crater. The hollow is located on the south-facing slope of Ahmad Baba's peak ring (north is toward the upper-right corner in this image).
This image was acquired as part of the MDIS low-altitude imaging campaign. During MESSENGER's second extended mission, the spacecraft makes a progressively closer approach to Mercury's surface than at any previous point in the mission, enabling the acquisition of high-spatial-resolution data. For spacecraft altitudes below 350 kilometers, NAC images are acquired with pixel scales ranging from 20 meters to as little as 2 meters.
Date acquired: May 12, 2014
Image Mission Elapsed Time (MET): 42186174
Image ID: 6293058
Instrument: Narrow Angle Camera (NAC) of the Mercury Dual Imaging System (MDIS)
Center Latitude: 57.60°
Center Longitude: 231.5° E
Resolution: 6 meters/pixel
Scale: This image is approximately 7 km (4 miles) across
Incidence Angle: 70.8°
Emission Angle: 49.0°
Phase Angle: 80.0°
Image credit: NASA/Johns Hopkins University Applied Physics Laboratory/Carnegie Institution of Washington
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