Frosty Slopes in Late Spring
NASA/JPL/University of Arizona
Frosty Slopes in Late Spring
ESP_039114_1115  Science Theme: Mass Wasting Processes
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This HiRISE image, approximately 1.5 by 3 kilometers, shows frosted gullies on a south-facing slope within a crater.

At this time of year only south-facing slopes retain the frost, while the north-facing slopes have melted. Gullies are not the only active geologic process going on here. A small crater is visible at the bottom of the slope.

Written by: Livio Tornabene, Ryan Hopkins, Kayle Hansen and Eric Pilles (audio: Tre Gibbs)   (17 December 2014)

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Acquisition date
30 November 2014

Local Mars time:
15:49

Latitude (centered)
-68.460°

Longitude (East)
1.289°

Range to target site
253.3 km (158.3 miles)

Original image scale range
50.7 cm/pixel (with 2 x 2 binning) so objects ~152 cm across are resolved

Map projected scale
50 cm/pixel

Map projection
Polarstereographic

Emission angle:
0.5°

Phase angle:
58.1°

Solar incidence angle
58°, with the Sun about 32° above the horizon

Solar longitude
243.4°, Northern Autumn

North azimuth:
99°

Sub-solar azimuth:
30.3°
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non-map           (152MB)

IRB color
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non-map           (143MB)

Merged IRB
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Merged RGB
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non map           (120MB)
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Color label
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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/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.