Pedestal Crater Development
Pedestal Crater Development
ESP_039936_1330  Science Theme: Landscape Evolution
In this image, we see an approximately 500-meter crater that is fairly fresh (in geological terms), but the ejecta is already high-standing. Could this be an indication of early stage of pedestal development?

A pedestal crater is when the ejecta from an impact settles around the new crater and is more erosion-resistant than the surrounding terrain. Over time, the surrounding terrain erodes much faster than the ejecta; in fact, some pedestal craters are measured to be hundreds of meters above the surrounding area.

HiRISE has imaged many other pedestal craters before, and the ejecta isn't always symmetrical, as in this observation.

This caption is based on the original science rationale.

Written by: HiRISE Science Team (narration: Tre Gibbs)  (1 July 2015)
Acquisition date
02 February 2015

Local Mars time

Latitude (centered)

Longitude (East)

Spacecraft altitude
250.2 km (155.5 miles)

Original image scale range
50.3 cm/pixel (with 2 x 2 binning) so objects ~151 cm across are resolved

Map projected scale
50 cm/pixel and North is up

Map projection

Emission angle

Phase angle

Solar incidence angle
41°, with the Sun about 49° above the horizon

Solar longitude
283.7°, Northern Winter

For non-map projected images
North azimuth:  97°
Sub-solar azimuth:  24.5°
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Black & white is 5 km across; enhanced color about 1 km
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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.