Crater with Debris Aprons in Tyrrhena Terra
NASA/JPL/University of Arizona
Crater with Debris Aprons in Tyrrhena Terra
ESP_031805_1545  Science Theme: Impact Processes
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This well-preserved impact crater in Tyrrhena Terra, northeast of Hellas Planitia, is approximately 6 kilometers in diameter. The interior rims of this crater are lined with debris aprons consisting of material eroded from the alcoves at the top of the crater walls.

The resolution of the HiRISE camera is able to see accumulations of meter-scale rocks at the base of the debris aprons. The interior crater floor has exposures of bright-toned material and small aeolian ripples.

Written by: Sharon Wilson   (29 May 2013)

This is a stereo pair with ESP_031950_1545.

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Acquisition date:09 May 2013 Local Mars time:14:14
Latitude (centered):-25.203° Longitude (East):84.178°
Range to target site:255.3 km (159.6 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 upMap projection:Equirectangular
Emission angle:4.0° Phase angle:36.3°
Solar incidence angle:32°, with the Sun about 58° above the horizon Solar longitude:315.6°, Northern Winter

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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.