Slope Lineae along Coprates Chasma Ridge
NASA/JPL-Caltech/UArizona
Slope Lineae along Coprates Chasma Ridge
ESP_032562_1670  Science Theme: Mass Wasting Processes
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 (narration: Tre Gibbs)  (3 September 2013)
 
Acquisition date
07 July 2013

Local Mars time
14:13

Latitude (centered)
-12.950°

Longitude (East)
295.378°

Spacecraft altitude
262.1 km (162.9 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 up

Map 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

For non-map projected images
North azimuth:  97°
Sub-solar azimuth:  15.7°
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RGB color
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IRB color
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JP2 EXTRAS
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map-projected  (421MB)
non-map           (416MB)

IRB color
map projected  (141MB)
non-map           (397MB)

Merged IRB
map projected  (185MB)

Merged RGB
map-projected  (175MB)

RGB color
non map           (379MB)
ADDITIONAL INFORMATION
B&W label
Color label
Merged IRB label
Merged RGB label
EDR products
HiView

NB
IRB: infrared-red-blue
RGB: red-green-blue
About color products (PDF)

Black & white is 5 km across; enhanced color about 1 km
For scale, use JPEG/JP2 black & white map-projected images

USAGE POLICY
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:
NASA/JPL-Caltech/UArizona

POSTSCRIPT
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. The HiRISE camera was built by Ball Aerospace and Technology Corporation and is operated by the University of Arizona.