A Valley Near the Northern Lowlands
A Valley Near the Northern Lowlands
ESP_050004_2170  Science Theme: Glacial/Periglacial Processes
The goal of this observation is to determine the source of the ridge within a possible moraine that is also present in another HiRISE image. A moraine is a mass of rocks and sediment carried down and deposited by a glacier.

If the structure is a moraine, we should expect to find two sources of debris converging in the valley. If the sources are carrying lots of debris, there is a good chance of finding more moraine features further up the valley.

Written by: HiRISE Science Team (audio: Tre Gibbs)  (11 December 2017)
Acquisition date
27 March 2017

Local Mars time

Latitude (centered)

Longitude (East)

Spacecraft altitude
294.9 km (183.3 miles)

Original image scale range
59.5 cm/pixel (with 2 x 2 binning) so objects ~179 cm across are resolved

Map projected scale
50 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
340.1°, Northern Winter

For non-map projected images
North azimuth:  97°
Sub-solar azimuth:  312.5°
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   (192MB)

IRB color
map-projected   (94MB)

Black and white
map-projected  (89MB)
non-map           (92MB)

IRB color
map projected  (34MB)
non-map           (93MB)

Merged IRB
map projected  (198MB)

Merged RGB
map-projected  (181MB)

RGB color
non map           (88MB)
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.