Dusty Top of Alba Patera Volcano
NASA/JPL/University of Arizona
Dusty Top of Alba Patera Volcano
PSP_001510_2195  Science Theme: Volcanic Processes
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This image shows a small portion of the rim of the caldera at the top of the volcano Alba Patera.

This volcano has shallower slopes than most of the other large volcanoes on Mars. Unfortunately, this image is not able to help us understand what is unique about Alba Patera because of the thick dust cover.

Instead it shows that the dust has been carved into streamlined shapes by the wind, cut by small landslides. Interestingly, there are some isolated patches that appear smooth and undisturbed by the wind.

Written by: Laszlo Kestay  (13 December 2006)

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Acquisition date
22 November 2006

Local Mars time:

Latitude (centered)

Longitude (East)

Range to target site
285.8 km (178.6 miles)

Original image scale range
from 57.2 cm/pixel (with 2 x 2 binning) to 114.3 cm/pixel (with 4 x 4 binning)

Map projected scale
50 cm/pixel and North is up

Map projection

Emission angle:

Phase angle:

Solar incidence angle
50°, with the Sun about 40° above the horizon

Solar longitude
139.0°, Northern Summer

North azimuth:

Sub-solar azimuth:
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IRB color
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Black and white
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non-map           (54MB)

IRB color
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non-map           (68MB)

Merged IRB
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Merged RGB
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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: 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.