Autumn View of Dune Field with Frost as Seen in Viking Image 516B52
NASA/JPL/University of Arizona
Autumn View of Dune Field with Frost as Seen in Viking Image 516B52
ESP_024997_1155  Science Theme: Aeolian Processes
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Acquisition date
26 November 2011

Local Mars time:

Latitude (centered)

Longitude (East)

Range to target site
250.8 km (156.8 miles)

Original image scale range
100.4 cm/pixel (with 4 x 4 binning) so objects ~301 cm across are resolved

Map projected scale
100 cm/pixel and North is up

Map projection

Emission angle:

Phase angle:

Solar incidence angle
85°, with the Sun about 5° above the horizon

Solar longitude
34.9°, Northern Spring

North azimuth:

Sub-solar azimuth:
Black and white
map projected  non-map

IRB color
map projected  non-map

Merged IRB
map projected

Merged RGB
map projected

RGB color
non-map projected

Black and white
map-projected   (93MB)

IRB color
map-projected   (59MB)

Black and white
map-projected  (41MB)
non-map           (56MB)

IRB color
map projected  (20MB)
non-map           (55MB)

Merged IRB
map projected  (99MB)

Merged RGB
map-projected  (88MB)

RGB color
non map           (50MB)
B&W label
Color label
Merged IRB label
Merged RGB label
EDR products

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

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

For information about NASA and agency programs on the Web, visit: 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.