A Boulder Festival in Masursky Crater
NASA/JPL/UArizona
A Boulder Festival in Masursky Crater
ESP_044653_1915  Science Theme: Impact Processes
This image covers part of the chaotic terrain in Masursky Crater, and was targeted due to evidence that ejecta from Mojave Crater—to the south—may have modified the landscape. Mojave Crater may be the most recent large (more than 50-kilometer wide) impact crater on Mars, and produced some remarkable fluvial (water-carved) landscapes.

In Masursky Crater we see huge numbers of boulder trails. These appear as dashed lines produced by boulders tumbling down steep slopes, periodically gouging troughs in the ground. Why are there so many boulder trails here? Possibly the ejecta from Mojave Crater disturbed the surface and sent the boulders tumbling downhill.

Written by: Alfred McEwen (narration: Tre Gibbs)  (6 April 2016)

This is a stereo pair with ESP_045286_1915.
 
Acquisition date
04 February 2016

Local Mars time
15:08

Latitude (centered)
11.121°

Longitude (East)
327.560°

Spacecraft altitude
278.3 km (172.9 miles)

Original image scale range
28.0 cm/pixel (with 1 x 1 binning) so objects ~84 cm across are resolved

Map projected scale
25 cm/pixel and North is up

Map projection
Equirectangular

Emission angle
6.9°

Phase angle
40.5°

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

Solar longitude
104.6°, Northern Summer

For non-map projected images
North azimuth:  97°
Sub-solar azimuth:  29.3°
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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.