Slope Lineae along Coprates Chasma Ridge
NASA/JPL/University of Arizona

Slope Lineae along Coprates Chasma Ridge
ESP_032562_1670  Science Theme: Mass Wasting Processes
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The formation of "recurring slope lineae" is a fascinating process on Mars that we're just beginning to investigate, and one that we've imaged before in Palikir Crater.

These RSLs show up in the spring and fade in the winter. Their presence might be due to briny water, and it opens up the door to taking a fresh look at other possible RSL candidates. This observation was done to accomplish just that: to re-image a previously photographed area that might confirm if this a candidate for RSL.

When HiRISE re-images an area, we try to match the exact lighting as before, in order to see any differences. Along with a stereo pair and resulting anaglyph, our understanding of the terrain is more complete.

Written by: HIRISE Science Team (audio by Tre Gibbs)   (12 September 2013)



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Acquisition date:07 July 2013 Local Mars time: 2:13 PM
Latitude (centered):-12.950° Longitude (East):295.378°
Range to target site:262.8 km (164.2 miles)Original image scale range:26.3 cm/pixel (with 1 x 1 binning) so objects ~79 cm across are resolved
Map projected scale:25 cm/pixel and North is upMap projection:Equirectangular
Emission angle:7.1° Phase angle:40.8°
Solar incidence angle:34°, with the Sun about 56° above the horizon Solar longitude:347.9°, Northern Winter
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North azimuth:97° Sub-solar azimuth:15.7°
For map-projected products
North azimuth:270°Sub solar azimuth:190.1°

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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.