Hues in a Crater Slope
NASA/JPL-Caltech/UArizona
Hues in a Crater Slope
ESP_021520_1550  Science Theme: Impact Processes
Impact craters expose the subsurface materials on steep slopes. However, these slopes often experience rockfalls and debris avalanches that keep the surface clean of dust, revealing a variety of hues, like in this enhanced-color image, representing different rock types. The bright reddish material at the top of the crater rim is from a coating of the Martian dust.

The long streamers of material are from downslope movements. Also revealed in this slope are a variety of bedrock textures, with a mix of layered and jumbled deposits. This sample is typical of the Martian highlands, with lava flows and water-lain materials depositing layers, then broken up and jumbled by many impact events.

(Note: North is approximately down in the cutout and above image).

Written by: Alfred McEwen  (2 January 2017)

This is a stereo pair with ESP_021454_1550.
 
Acquisition date
28 February 2011

Local Mars time
15:24

Latitude (centered)
-24.948°

Longitude (East)
76.840°

Spacecraft altitude
255.5 km (158.8 miles)

Original image scale range
55.7 cm/pixel (with 2 x 2 binning) so objects ~167 cm across are resolved

Map projected scale
50 cm/pixel and North is up

Map projection
Equirectangular

Emission angle
23.2°

Phase angle
23.3°

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

Solar longitude
245.3°, Northern Autumn

For non-map projected images
North azimuth:  98°
Sub-solar azimuth:  358.2°
JPEG
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

JP2
Black and white
map-projected   (460MB)

IRB color
map-projected   (227MB)

JP2 EXTRAS
Black and white
map-projected  (255MB)
non-map           (216MB)

IRB color
map projected  (133MB)
non-map           (217MB)

Merged IRB
map projected  (498MB)

Merged RGB
map-projected  (448MB)

RGB color
non map           (189MB)
ANAGLYPHS
Map-projected, reduced-resolution
Full resolution JP2 download
Anaglyph details page

BONUS
4K (TIFF)
8K (TIFF)

ADDITIONAL INFORMATION
B&W label
Color label
Merged IRB label
Merged RGB label
EDR products
HiView

NB
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

USAGE POLICY
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.