HiRISE | Two Different Episodes of Water Flow (ESP_085506

NASA/JPL-Caltech/UArizona

Two Different Episodes of Water Flow
ESP_085506_1890 Science Theme:

In this HiRISE image, there are two different shapes of the channels. One channel, shown from the lower left to the upper right, is filled in with the same materials around it. The other channel, shown in the lower right, is darker and depressed in topography.

From these different morphologies, we are able to determine that the filled in channel is older while the depressed channel is younger, indicating at least two different times when water flowed in this region.

Written by: Cathy Weitz (21 January 2025)

Acquisition date
22 October 2024

Local Mars time
14:22

Latitude (centered)
8.762°

Longitude (East)
353.227°

Spacecraft altitude
274.8 km (170.8 miles)

Original image scale range
55.0 cm/pixel (with 2 x 2 binning) so objects ~165 cm across are resolved

Map projected scale
50 cm/pixel and North is up

Map projection
Equirectangular

Emission angle
0.0°

Phase angle
38.0°

Solar incidence angle
38°, with the Sun about 52° above the horizon

Solar longitude
349.6°, Northern Winter

For non-map projected images
North azimuth: 97°
Sub-solar azimuth: 347.6°

JPEG
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

JP2
Black and white
map-projected   (115MB)

IRB color
map-projected   (32MB)

JP2 EXTRAS
Black and white
map-projected (50MB)
non-map           (82MB)

IRB color
map projected (12MB)
non-map           (38MB)

Merged IRB
map projected (125MB)

Merged RGB
map-projected (120MB)

RGB color
non map           (72MB)

ADDITIONAL INFORMATION
B&W label
Color label
Merged IRB label
Merged RGB label
EDR products
HiView

NB
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

USAGE POLICY
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-Caltech/UArizona

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.