Defrosting Dunes in Matara Crater
NASA/JPL-Caltech/UArizona
Defrosting Dunes in Matara Crater
ESP_072582_1300  Science Theme: Mass Wasting Processes
The defrosting patterns and aerodynamic shapes of high-latitude dunes make great pictures.

This is the latest of a series of images to monitor gully activity in the late winter season. Matara is about 48 kilometers in diameter, located in Noachis Terra, an extensive southern landmass to the west of the Hellas impact basin.

Written by: Alfred McEwen  (22 March 2022)
 
Acquisition date
19 January 2022

Local Mars time
15:54

Latitude (centered)
-49.469°

Longitude (East)
34.724°

Spacecraft altitude
252.0 km (156.6 miles)

Original image scale range
50.9 cm/pixel (with 2 x 2 binning) so objects ~153 cm across are resolved

Map projected scale
50 cm/pixel and North is up

Map projection
Equirectangular

Emission angle
8.0°

Phase angle
83.6°

Solar incidence angle
77°, with the Sun about 13° above the horizon

Solar longitude
160.5°, Northern Summer

For non-map projected images
North azimuth:  96°
Sub-solar azimuth:  36.0°
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   (182MB)

IRB color
map-projected   (114MB)

JP2 EXTRAS
Black and white
map-projected  (85MB)
non-map           (141MB)

IRB color
map projected  (33MB)
non-map           (91MB)

Merged IRB
map projected  (155MB)

Merged RGB
map-projected  (144MB)

RGB color
non map           (80MB)
ANAGLYPHS
Map-projected, reduced-resolution
Full resolution JP2 download
Anaglyph details page

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.