A Pedestal Crater in the Northern Mid-Latitudes
A Pedestal Crater in the Northern Mid-Latitudes
ESP_028598_2230  Science Theme: Impact Processes
This image is of a pedestal crater at 43 degrees north. The lobate pattern around the circular crater is where the crater ejecta landed. This area is now raised above the level of the surrounding plains, forming a mesa, or plateau, with the crater at the center.

This suggests that at one time the surface of the whole region was at this level. The ejecta from the crater covered the area near the crater and protected it, while the surrounding region was eroded away, leaving the crater high standing. This material may have been removed because it was loose and/or cemented with ice.

Pedestal craters are particularly interesting because some ice may still be present in the mesa, protected by the ejecta surface.

Written by: Patrick Russell (narration: Tre Gibbs)  (26 September 2012)

This is a stereo pair with ESP_035771_2230.
Acquisition date
01 September 2012

Local Mars time

Latitude (centered)

Longitude (East)

Spacecraft altitude
302.0 km (187.7 miles)

Original image scale range
60.5 cm/pixel (with 2 x 2 binning) so objects ~181 cm across are resolved

Map projected scale
50 cm/pixel and North is up

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Emission angle

Phase angle

Solar incidence angle
58°, with the Sun about 32° above the horizon

Solar longitude
164.7°, Northern Summer

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North azimuth:  97°
Sub-solar azimuth:  342.3°
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NASA’s Jet Propulsion Laboratory, a division of the California Institute of Technology in Pasadena, Calif., manages the Mars Reconnaissance Orbiter for NASA’s Science Mission Directorate, Washington. The HiRISE camera was built by Ball Aerospace and Technology Corporation and is operated by the University of Arizona.