Flow Structures in Noctis Region Trough
NASA/JPL-Caltech/UArizona
Flow Structures in Noctis Region Trough
ESP_020313_1720  Science Theme: Geologic Contacts/Stratigraphy
Noctis Labyrinthus, “the labyrinth of the night,” sits at the western end of the largest canyon of the solar system Valles Marineris. This image was taken to investigate the nature of this impact ejecta.

The wavy structures visible in the image center may have formed from this partly molten ejected material. The tectonic forces that opened this canyon also disrupted the crust in this location and led to the formation of many isolated blocks of rock with intervening valleys.

Later events have also left their mark on this maze-like landscape. The formation of 124-kilometer diameter (78 miles) Oudemans Crater to the east likely dumped ejected material on the area visible here.

Written by: Shane Byrne  (4 January 2011)

This is a stereo pair with ESP_020735_1720.
 
Acquisition date
26 November 2010

Local Mars time
15:40

Latitude (centered)
-8.082°

Longitude (East)
265.570°

Spacecraft altitude
258.6 km (160.7 miles)

Original image scale range
51.6 cm/pixel (with 2 x 2 binning) so objects ~155 cm across are resolved

Map projected scale
50 cm/pixel and North is up

Map projection
Equirectangular

Emission angle
4.3°

Phase angle
59.2°

Solar incidence angle
55°, with the Sun about 35° above the horizon

Solar longitude
187.7°, Northern Autumn

For non-map projected images
North azimuth:  97°
Sub-solar azimuth:  7.8°
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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:
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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.