Well-Preserved Impact Crater with Ridges
Well-Preserved Impact Crater with Ridges
ESP_025557_1705  Science Theme: Impact Processes
Although the rim of this well-preserved crater and its smooth walls are very impressive, note also the spectacular collection of ridges draping the underlying topography on the floor of this crater.

What can account for the formation of the terrain at the crater floor? One possible reason might the former icy flows at this latitude. High resolution images like this can give us better insight into features like this.

This subimage also shows the faint tracks of material that has rolled down from near the top of the crater rim to the floor.

Written by: HiRISE Science Team (narration: Tre Gibbs)  (11 July 2012)

This is a stereo pair with ESP_017975_1705.
Acquisition date
08 January 2012

Local Mars time

Latitude (centered)

Longitude (East)

Spacecraft altitude
262.2 km (163.0 miles)

Original image scale range
55.4 cm/pixel (with 2 x 2 binning) so objects ~166 cm across are resolved

Map projected scale
50 cm/pixel and North is up

Map projection

Emission angle

Phase angle

Solar incidence angle
52°, with the Sun about 38° above the horizon

Solar longitude
54.4°, Northern Spring

For non-map projected images
North azimuth:  96°
Sub-solar azimuth:  44.1°
Black and white
map projected  non-map

IRB color
map projected  non-map

Merged IRB
map projected

Merged RGB
map projected

RGB color
non-map projected

Black and white
map-projected   (263MB)

IRB color
map-projected   (162MB)

Black and white
map-projected  (111MB)
non-map           (98MB)

IRB color
map projected  (44MB)
non-map           (144MB)

Merged IRB
map projected  (235MB)

Merged RGB
map-projected  (232MB)

RGB color
non map           (133MB)
Map-projected, reduced-resolution
Full resolution JP2 download
Anaglyph details page

B&W label
Color label
Merged IRB label
Merged RGB label
EDR products

IRB: infrared-red-blue
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’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.