An Impact Crater in Isidis Planitia
An Impact Crater in Isidis Planitia
ESP_036934_1915  Science Theme: Future Exploration/Landing Sites
This recent observation is the fifth time we’ve imaged this spot on Mars. We often re-image spots on the surface to search for, or track changes, due to active processes, such as migrating sand dunes.

In this case, there isn’t any known activity, although careful comparison of the images could show changes. Instead, we acquired these pictures at a range of viewing and illumination angles as an experiment to try to extract new information at the limits of image resolution. This is possible in two ways: by seeing the 3D shapes from different illumination and viewing angles, and, after orthorectification of the images, by combining them into a “super-resolution” image. (Orthorectification shows how the sloping surface appears from directly overhead).

This location is also the site of an early candidate for location of the Beagle 2 lander based on an image from the Mars Global Surveyor. HiRISE has acquired 24 other images covering most of the expected Beagle-2 landing ellipse, but no clear evidence for Beagle 2 has been reported.

Written by: Alfred McEwen  (2 July 2014)
Acquisition date
13 June 2014

Local Mars time

Latitude (centered)

Longitude (East)

Spacecraft altitude
277.6 km (172.5 miles)

Original image scale range
27.8 cm/pixel (with 1 x 1 binning) so objects ~83 cm across are resolved

Map projected scale
25 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
145.2°, Northern Summer

For non-map projected images
North azimuth:  97°
Sub-solar azimuth:  14.5°
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   (517MB)

IRB color
map-projected   (285MB)

Black and white
map-projected  (215MB)
non-map           (289MB)

IRB color
map projected  (73MB)
non-map           (237MB)

Merged IRB
map projected  (124MB)

Merged RGB
map-projected  (118MB)

RGB color
non map           (225MB)
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/JPL/University of Arizona

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.