Young Rampart Crater
NASA/JPL-Caltech/UArizona
Young Rampart Crater
PSP_006588_1615  Science Theme: Impact Processes
This image captures the western side of a relatively young rampart crater in the Tharsis region.

Rampart craters are surrounded by a fluidized ejecta blanket (an ejecta blanket is the material thrown out around a crater when the impact occurs, in this case resembling the whites of a fried egg, where the crater is the yolk). Researchers speculate that these may form when an object impacts ground that contains fluid (liquid or frozen) that is released upon impact. THEMIS images V06896002 and V10266002 provide context images for this side of the crater and show the rampart of the crater.

Within the crater we see evidence of landslides originating at the upper edges. These landslides have exposed individual rock layers as well as outcrops of stronger rock types which are more resistant to erosion.

Written by: Tahirih Motazedian  (20 February 2008)

This is a stereo pair with ESP_011572_1615.
 
Acquisition date
22 December 2007

Local Mars time
14:30

Latitude (centered)
-18.478°

Longitude (East)
228.537°

Spacecraft altitude
254.3 km (158.1 miles)

Original image scale range
25.4 cm/pixel (with 1 x 1 binning) so objects ~76 cm across are resolved

Map projected scale
25 cm/pixel and North is up

Map projection
Equirectangular

Emission angle
0.2°

Phase angle
42.8°

Solar incidence angle
43°, with the Sun about 47° above the horizon

Solar longitude
6.5°, Northern Spring

For non-map projected images
North azimuth:  97°
Sub-solar azimuth:  31.1°
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DIGITAL TERRAIN MODEL (DTM)
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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
For scale, use JPEG/JP2 black & white map-projected images

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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.