The Writing is on the Wall
NASA/JPL-Caltech/UArizona
The Writing is on the Wall
ESP_070461_2245  Science Theme: Mass Wasting Processes
These U-shaped ridges along this crater’s interior wall provide clues to an ice-rich past. The curved, scalloped ridges, called moraines, are made up of rocks that the glacier collected as it moved downslope.

Even after the ice disappears, the glacial moraines remain, marking the furthest extent (or end) of the glacier. The parallel linear ridges on the wall may mark past levels of the glacier. Although glaciers move slowly, ice is a very powerful way to modify the surface of a planet.

Written by: Sharon Wilson (narration: Tre Gibbs)  (12 October 2021)
 
Acquisition date
07 August 2021

Local Mars time
15:29

Latitude (centered)
44.286°

Longitude (East)
333.793°

Spacecraft altitude
303.5 km (188.7 miles)

Original image scale range
60.9 cm/pixel (with 2 x 2 binning) so objects ~183 cm across are resolved

Map projected scale
50 cm/pixel and North is up

Map projection
Equirectangular

Emission angle
3.8°

Phase angle
50.2°

Solar incidence angle
46°, with the Sun about 44° above the horizon

Solar longitude
82.4°, Northern Spring

For non-map projected images
North azimuth:  97°
Sub-solar azimuth:  359.3°
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   (248MB)

IRB color
map-projected   (152MB)

JP2 EXTRAS
Black and white
map-projected  (123MB)
non-map           (141MB)

IRB color
map projected  (50MB)
non-map           (114MB)

Merged IRB
map projected  (260MB)

Merged RGB
map-projected  (239MB)

RGB color
non map           (106MB)
BONUS
4K (TIFF)
8K (TIFF)
10K (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.