Radiating Dark Slope Streaks
Radiating Dark Slope Streaks
PSP_005514_1925  Science Theme: Impact Processes
Centered in this image is a high-standing mound of material that sits within a large impact crater (the edges of which are not visible). Evident are numerous dark streaks that originate in the higher elevation areas near the center of the mound.

These streaks are possibly areas where the lighter surface dust cover has been disturbed and partially stripped away, revealing a darker layer beneath the dust. The dark streaks fade fairly rapidly as layers of bright dust settle over them.

Written by: Brad Thomson  (17 October 2007)

This is a stereo pair with PSP_005369_1925.
Acquisition date
30 September 2007

Local Mars time

Latitude (centered)

Longitude (East)

Spacecraft altitude
275.7 km (171.4 miles)

Original image scale range
28.9 cm/pixel (with 1 x 1 binning) so objects ~87 cm across are resolved

Map projected scale
25 cm/pixel and North is up

Map projection

Emission angle

Phase angle

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

Solar longitude
322.6°, Northern Winter

For non-map projected images
North azimuth:  97°
Sub-solar azimuth:  324.0°
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Black & white is 5 km across; enhanced color about 1 km
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NASA/JPL/University of Arizona

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.