Well Preserved Impact Crater of Alba Patera
NASA/JPL-Caltech/UArizona
Well Preserved Impact Crater of Alba Patera
PSP_006745_2250  Science Theme: Impact Processes
This image shows a central swath of a well preserved crater on the volcano Alba Patera. The crater has steep walls and no large superposed craters.

The mounds of material located adjacent to the walls probably fell there during the late-stages of crater formation. The center of the crater contains a central pit that has potential fluvial features that might have formed from water released in the impact melt.

There are abundant coalesced pits near the central depression. These also might have formed from volatiles escaping from impact melt.



Written by: Kelly kOLB  (14 May 2008)

This is a stereo pair with PSP_007035_2250.
 
Acquisition date
04 January 2008

Local Mars time
14:19

Latitude (centered)
44.647°

Longitude (East)
253.029°

Spacecraft altitude
294.4 km (183.0 miles)

Original image scale range
from 29.6 cm/pixel (with 1 x 1 binning) to 59.2 cm/pixel (with 2 x 2 binning)

Map projected scale
25 cm/pixel and North is up

Map projection
Equirectangular

Emission angle
2.9°

Phase angle
52.3°

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

Solar longitude
12.4°, Northern Spring

For non-map projected images
North azimuth:  97°
Sub-solar azimuth:  323.7°
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ANAGLYPHS
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ADDITIONAL INFORMATION
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HiView

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IRB: infrared-red-blue
RGB: red-green-blue
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Black & white is 5 km across; enhanced color about 1 km
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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.