HiRISE | Northern Ladon Basin (ESP_026495

NASA/JPL-Caltech/UArizona

Northern Ladon Basin
ESP_026495_1635 Science Theme: Landscape Evolution

This image shows part of the northern margin of Ladon Basin near where valley systems terminate into the basin.

Ladon Basin is an ancient impact feature likely formed during an epoch in Martian history called the Noachian period. It has since been partially filled by a variety of materials.

The medium-scale Ladon Valles and Morava Valles enter into and drain the basin, respectively, and it is possible that they were separated by a lake within the basin at one time. Light-toned materials near the top (north) of the image do not appear to be volcanic and could relate to past sedimentary infilling of the basin.

Such materials may preserve clues to the history of basin infilling and any role played be water over time.

Written by: John Grant (1 May 2012)

Acquisition date
22 March 2012

Local Mars time
15:11

Latitude (centered)
-16.305°

Longitude (East)
330.082°

Spacecraft altitude
261.9 km (162.8 miles)

Original image scale range
26.5 cm/pixel (with 1 x 1 binning) so objects ~80 cm across are resolved

Map projected scale
25 cm/pixel and North is up

Map projection
Equirectangular

Emission angle
9.3°

Phase angle
69.0°

Solar incidence angle
62°, with the Sun about 28° above the horizon

Solar longitude
86.4°, Northern Spring

For non-map projected images
North azimuth: 97°
Sub-solar azimuth: 46.3°

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   (1061MB)

IRB color
map-projected   (645MB)

JP2 EXTRAS
Black and white
map-projected (534MB)
non-map           (604MB)

IRB color
map projected (243MB)
non-map           (517MB)

Merged IRB
map projected (286MB)

Merged RGB
map-projected (272MB)

RGB color
non map           (514MB)

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.