Light-Toned and Possible Hydrated Materials in a Gullied Crater
NASA/JPL-Caltech/UArizona
Light-Toned and Possible Hydrated Materials in a Gullied Crater
ESP_025472_1405  Science Theme: Fluvial Processes
This observation shows a gullied crater in the southern mid-latitudes with light-toned deposits near the center of its floor, and two areas of collapsed terrain at the northern and southern edges of the crater floor.

Data from the CRISM instrument—also onboard the Mars Reconnaissance Orbiter—tentatively show a minerals containing chemically-bound water in the “chaotic” areas.

Written by: HiRISE Science Team (audio by Tre Gibbs)  (11 July 2012)
 
Acquisition date
02 January 2012

Local Mars time
15:00

Latitude (centered)
-39.072°

Longitude (East)
181.763°

Spacecraft altitude
253.0 km (157.3 miles)

Original image scale range
25.5 cm/pixel (with 1 x 1 binning) so objects ~77 cm across are resolved

Map projected scale
25 cm/pixel and North is up

Map projection
Equirectangular

Emission angle
5.3°

Phase angle
75.7°

Solar incidence angle
72°, with the Sun about 18° above the horizon

Solar longitude
51.5°, Northern Spring

For non-map projected images
North azimuth:  96°
Sub-solar azimuth:  50.5°
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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:
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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.