Dusty Top of Alba Patera Volcano
NASA/JPL/University of Arizona
Dusty Top of Alba Patera Volcano
PSP_001510_2195  Science Theme: Volcanic Processes
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This image shows a small portion of the rim of the caldera at the top of the volcano Alba Patera.

This volcano has shallower slopes than most of the other large volcanoes on Mars. Unfortunately, this image is not able to help us understand what is unique about Alba Patera because of the thick dust cover.

Instead it shows that the dust has been carved into streamlined shapes by the wind, cut by small landslides. Interestingly, there are some isolated patches that appear smooth and undisturbed by the wind.

Written by: Laszlo Kestay   (2 December 2009)

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Acquisition date:22 November 2006 Local Mars time:15:23
Latitude (centered):39.334° Longitude (East):251.538°
Range to target site:285.8 km (178.6 miles)Original image scale range:from 57.2 cm/pixel (with 2 x 2 binning) to 114.3 cm/pixel (with 4 x 4 binning)
Map projected scale:50 cm/pixel and North is upMap projection:Equirectangular
Emission angle:0.3° Phase angle:49.8°
Solar incidence angle:50°, with the Sun about 40° above the horizon Solar longitude:139.0°, Northern Summer

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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.