A Fan-Shaped Landform and Nearby Light-Toned Material
NASA/JPL/University of Arizona
A Fan-Shaped Landform and Nearby Light-Toned Material
ESP_039731_1580  Science Theme: Fluvial Processes
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The focus of this image is on the western end of a fan-shaped landform, located at the end point of a sinuous valley.

Our observation covers crater-retaining mesas which overlie light-toned materials, both potentially related to the formation of the fan. There are also craters younger than the fan which impacted into these materials.

This caption is based on the original science rationale.

Written by: HIRISE Science Team (audio: Tre Gibbs)  (17 June 2015)
 
Acquisition date
17 January 2015

Local Mars time
14:57

Latitude (centered)
-21.993°

Longitude (East)
68.178°

Spacecraft altitude
257.3 km (159.9 miles)

Original image scale range
26.0 cm/pixel (with 1 x 1 binning) so objects ~78 cm across are resolved

Map projected scale
25 cm/pixel and North is up

Map projection
Equirectangular

Emission angle
7.1°

Phase angle
33.6°

Solar incidence angle
41°, with the Sun about 49° above the horizon

Solar longitude
273.8°, Northern Winter

For non-map projected images
North azimuth:  97°
Sub-solar azimuth:  352.5°
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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
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.