Small Mounds in Chryse Planitia
NASA/JPL/University of Arizona
Small Mounds in Chryse Planitia
ESP_023304_1995  Science Theme: Volcanic Processes
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This HiRISE image shows a group of cones, shield-like features, and round mounds. They are a few hundred meters to kilometers in diameter. Possible origins include sedimentary (mud) volcanism and magmatic volcanism. HiRISE data are essential for evaluating these hypotheses.

This caption is based on the original science rationale.

Written by: HiRISE Science Team   (21 September 2011)

This is a stereo pair with ESP_023726_1995.

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Acquisition date:17 July 2011 Local Mars time:13:59
Latitude (centered):19.125° Longitude (East):322.904°
Range to target site:289.9 km (181.2 miles)Original image scale range:29.0 cm/pixel (with 1 x 1 binning) so objects ~87 cm across are resolved
Map projected scale:25 cm/pixel and North is upMap projection:Equirectangular
Emission angle:12.6° Phase angle:53.7°
Solar incidence angle:43°, with the Sun about 47° above the horizon Solar longitude:329.5°, Northern Winter

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For information about NASA and agency programs on the Web, visit: 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.