HiRISE | Cratered Dune Forms (ESP_025389

NASA/JPL-Caltech/UArizona

Cratered Dune Forms
ESP_025389_1690 Science Theme: Sedimentary/Layering Processes

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One of the scientific goals for taking this observation is to create a stereo pair with another HiRISE image. From stereo pairs, which are pictures of the same area but at different angles, HiRISE creates 3D (anaglyph) pictures.

Known since at least 2003, this is a wonderful case of (windblown) aeolian sandstone that (a) preserves its original sand dune bedform shapes and (b) lies unconformably over a previously-eroded surface of layered sedimentary rock.

This caption is based on the original science rationale.

Written by: HiRISE Science Team (28 March 2012)

Acquisition date
26 December 2011

Local Mars time
14:55

Latitude (centered)
-11.144°

Longitude (East)
284.903°

Spacecraft altitude
256.8 km (159.6 miles)

Original image scale range
52.7 cm/pixel (with 2 x 2 binning) so objects ~158 cm across are resolved

Map projected scale
50 cm/pixel and North is up

Map projection
Equirectangular

Emission angle
6.3°

Phase angle
48.0°

Solar incidence angle
53°, with the Sun about 37° above the horizon

Solar longitude
48.6°, Northern Spring

For non-map projected images
North azimuth: 97°
Sub-solar azimuth: 41.5°

JPEG
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

JP2
Black and white
map-projected   (269MB)

IRB color
map-projected   (157MB)

JP2 EXTRAS
Black and white
map-projected (143MB)
non-map           (138MB)

IRB color
map projected (50MB)
non-map           (153MB)

Merged IRB
map projected (262MB)

Merged RGB
map-projected (239MB)

RGB color
non map           (139MB)

BONUS
4K (TIFF)
8K (TIFF)

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.