A Youthful Crater in the Cydonia Colles Region
NASA/JPL/University of Arizona
A Youthful Crater in the Cydonia Colles Region
ESP_027417_2200  Science Theme: 
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The central portion of this image is dominated by a sharp-rimmed crater that is roughly 5 kilometers in diameter. On its slopes, gullies show young (i.e., geologically recent) headward erosion, which is the lengthening of the gully in the upslope direction.

This crater is also remarkable for another reason. This image is part of a stereo pair, and the anaglyph of these images shows that the bottom of the crater contains a small mound. This mound hints at a possible complex crater, with the mound being a central uplift. Complex craters as small as this one are uncommon and such examples may provide clues to the lithology of the rocks underground and possibly to the impact process itself.

Written by: David Purcell and Marjorie A. Chan  (25 November 2015)

This is a stereo pair with ESP_025716_2200.
 
Acquisition date
01 June 2012

Local Mars time
15:00

Latitude (centered)
39.649°

Longitude (East)
350.479°

Spacecraft altitude
298.2 km (185.4 miles)

Original image scale range
33.1 cm/pixel (with 1 x 1 binning) so objects ~99 cm across are resolved

Map projected scale
25 cm/pixel and North is up

Map projection
Equirectangular

Emission angle
26.9°

Phase angle
69.0°

Solar incidence angle
42°, with the Sun about 48° above the horizon

Solar longitude
118.8°, Northern Summer

For non-map projected images
North azimuth:  98°
Sub-solar azimuth:  355.1°
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Black & white is 5 km across; enhanced color about 1 km
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All of the images produced by HiRISE and accessible on this site are within the public domain: there are no restrictions on their usage by anyone in the public, including news or science organizations. We do ask for a credit line where possible:
NASA/JPL/University of Arizona

POSTSCRIPT
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.