Sandstone in West Candor Chasma
Sandstone in West Candor Chasma
ESP_062839_1740  Science Theme: Composition and Photometry
Candor Chasma in central Valles Marineris is filled with light-toned layered deposits thought to be sandstones, perhaps formed in an ancient wet and potentially habitable environment.

The CRISM instrument on MRO has acquired thousands high-resolution spectral images across Mars, often with simultaneous coverage by HiRISE, but sometimes, for a variety of reasons, without HiRISE coverage. We are now trying to complete coordinated coverage over such locations, to enable geologic interpretations based on both the compositional information of CRISM and the high-resolution imaging of HiRISE.

Written by: Alfred McEwen  (20 January 2020)
Acquisition date
22 December 2019

Local Mars time

Latitude (centered)

Longitude (East)

Spacecraft altitude
262.7 km (163.2 miles)

Original image scale range
52.5 cm/pixel (with 2 x 2 binning) so objects ~157 cm across are resolved

Map projected scale
50 cm/pixel and North is up

Map projection

Emission angle

Phase angle

Solar incidence angle
57°, with the Sun about 33° above the horizon

Solar longitude
124.5°, Northern Summer

For non-map projected images
North azimuth:  97°
Sub-solar azimuth:  35.8°
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   (171MB)

IRB color
map-projected   (109MB)

Black and white
map-projected  (85MB)
non-map           (93MB)

IRB color
map projected  (35MB)
non-map           (109MB)

Merged IRB
map projected  (179MB)

Merged RGB
map-projected  (165MB)

RGB color
non map           (102MB)
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.