Polygons and Spots on Defrosting Dunes
NASA/JPL/University of Arizona

Polygons and Spots on Defrosting Dunes
PSP_008867_2640  Science Theme: Seasonal Processes


This is a stereo pair with PSP_009105_2640.



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 Observation Toolbox
Acquisition date:17 June 2008 Local Mars time:12:57 PM
Latitude (centered):83.991° Longitude (East):233.247°
Range to target site:321.8 km (201.1 miles)Original image scale range:32.2 cm/pixel (with 1 x 1 binning) so objects ~97 cm across are resolved
Map projected scale:25 cm/pixelMap projection:Polarstereographic
Emission angle:9.1° Phase angle:66.3°
Solar incidence angle:59°, with the Sun about 31° above the horizon Solar longitude:86.6°, Northern Spring
For non-map projected products:
North azimuth:127° Sub-solar azimuth:319.7°
For map-projected products
North azimuth:36.76°Sub solar azimuth:231.8°

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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: Image: 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.