HiRISE | Fans and Seasonal Polygonal Features (ESP_014284

NASA/JPL/University of Arizona

Fans and Seasonal Polygonal Features
ESP_014284_0980 Science Theme: Seasonal Processes

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Grayscale: map-projected (157.2 MB),
non-map (205.1 MB)

IRB color: map projected (80.9 MB)
non-map (180.5 MB)

RGB color: non map-projected (168.9 MB)

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Acquisition date:	13 August 2009	Local Mars time:	3:19 PM
Latitude (centered):	-81.9 degrees	Longitude (East):	4.8 degrees
Range to target site:	251.5 km (157.2 miles)	Original image scale range:	50.3 cm/pixel (with 2 x 2 binning) so objects ~151 cm across are resolved
Map projected scale:	50 cm/pixel	Map projection:	POLAR STEREOGRAPHIC
Emission angle:	5.4 degrees	Phase angle:	72.4 degrees
Solar incidence angle:	69 degrees, with the Sun about 21 degrees above the horizon	Solar longitude:	320.6 degrees, Northern Winter
For non-map projected products:
North azimuth:	108 degrees	Sub-solar azimuth:	54.1 degrees
For map-projected products
North azimuth:	274.8 degrees	Sub solar azimuth:	222.9 degrees

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: Image: 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.