HiRISE | Intra-Crater Structure in NW Hellas Basin (ESP_017196

NASA/JPL/University of Arizona

Intra-Crater Structure in NW Hellas Basin
ESP_017196_1455 Science Theme: Impact Processes

WALLPAPER

800  1024
1152  1280
1440  1600
1920  2048
2560

HIFLYER

PDF, 11 x 17 in

This area of Hellas Basin has a number of unusual features which are thought to be quite old because of the high crater density. Here a crater has been filled with material. This may be related to volcanic activity on the northwestern rim of Hellas.

However, it might also be related to water and water ice. There is evidence elsewhere that the ground here is ice-rich. HiRISE will investigate this in more detail when Hellas Basin is free from atmospheric dust.

Written by: Nicolas Thomas (5 May 2010)

Image Products: All image links are drag & drop for HiView, or click to download

JPEG
Grayscale: map projected non-map
IRB color: map projected non-map
RGB color: non-map projected

JP2 DOWNLOAD
Grayscale: map-projected (431.2 MB)
IRB color: map-projected (230.5 MB)

JP2 EXTRAS
Grayscale: map-projected (226.7 MB),
non-map (225.6 MB)

IRB color: map projected (77.8 MB)
non-map (235.5 MB)

RGB color: non map-projected (205.8 MB)

ADDITIONAL IMAGE INFORMATION
Grayscale label Color label
Merged IRB label Merged RGB label
EDR products

About color products (PDF)
HiView main page
HiRISE Online Image Viewer

Observation Toolbox

Acquisition date:	28 March 2010	Local Mars time:	3:18 PM
Latitude (centered):	-33.955 degrees	Longitude (East):	48.501 degrees
Range to target site:	254.3 km (158.9 miles)	Original image scale range:	50.9 cm/pixel (with 2 x 2 binning) so objects ~153 cm across are resolved
Map projected scale:	50 cm/pixel and North is up	Map projection:	EQUIRECTANGULAR
Emission angle:	5.0 degrees	Phase angle:	71.5 degrees
Solar incidence angle:	74 degrees, with the Sun about 16 degrees above the horizon	Solar longitude:	69.9 degrees, Northern Spring
For non-map projected products:
North azimuth:	97 degrees	Sub-solar azimuth:	49.9 degrees
For map-projected products
North azimuth:	270 degrees	Sub solar azimuth:	222.2 degrees

NEARBY OBSERVATIONS

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: Image: NASA/JPL/University of Arizona

Postscript
For information about NASA and agency programs on the Web, visit: http://www.nasa.gov. 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. Lockheed Martin Space Systems is the prime contractor for the project and built the spacecraft. The HiRISE camera was built by Ball Aerospace and Technology Corporation and is operated by the University of Arizona. The image data were processed using the U.S. Geological Survey’s ISIS3 software.