Small Crater within Pollack Crater Containing Light-Toned Material
NASA/JPL/University of Arizona
Small Crater within Pollack Crater Containing Light-Toned Material
ESP_018212_1715  Science Theme: Geologic Contacts/Stratigraphy
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This observation shows a small crater in within the much larger Pollack Crater containing light-toned material. Pollack Crater is a 90-kilometer diameter impact crater first imaged by the Mariner 9 spacecraft.

This material was first observed by the THEMIS team, and there are multiple Context Camera and Mars Orbiter Camera images showing that this light-toned material may be similar to the large “White Rock” outcrop to the northwest. HiRISE has also imaged White Rock several times. In these cases, we can see how different teams can work together to get an interesting image at high resolution for further study.

Written by: HIRISE Science Team (audio by Tre Gibbs)   (21 August 2013)

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Acquisition date
15 June 2010

Local Mars time:
15:20

Latitude (centered)
-8.267°

Longitude (East)
25.247°

Range to target site
266.3 km (166.4 miles)

Original image scale range
26.6 cm/pixel (with 1 x 1 binning) so objects ~80 cm across are resolved

Map projected scale
25 cm/pixel and North is up

Map projection
Equirectangular

Emission angle:
8.5°

Phase angle:
65.2°

Solar incidence angle
59°, with the Sun about 31° above the horizon

Solar longitude
104.9°, Northern Summer

North azimuth:
97°

Sub-solar azimuth:
40.9°
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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
For information about NASA and agency programs on the Web, visit: http://www.nasa.gov. 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. Lockheed Martin Space Systems is the prime contractor for the project and built the spacecraft. The HiRISE camera was built by Ball Aerospace and Technology Corporation and is operated by the University of Arizona. The image data were processed using the U.S. Geological Survey’s ISIS3 software.