Intra-Crater Structure in NW Hellas Basin
NASA/JPL-Caltech/UArizona
Intra-Crater Structure in NW Hellas Basin
ESP_017196_1455  Science Theme: Impact Processes
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)
 
Acquisition date
28 March 2010

Local Mars time
15:18

Latitude (centered)
-33.955°

Longitude (East)
48.502°

Spacecraft altitude
252.8 km (157.1 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°

Phase angle
71.5°

Solar incidence angle
75°, with the Sun about 15° above the horizon

Solar longitude
69.9°, Northern Spring

For non-map projected images
North azimuth:  97°
Sub-solar azimuth:  50.0°
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   (431MB)

IRB color
map-projected   (230MB)

JP2 EXTRAS
Black and white
map-projected  (227MB)
non-map           (226MB)

IRB color
map projected  (78MB)
non-map           (230MB)

Merged IRB
map projected  (415MB)

Merged RGB
map-projected  (379MB)

RGB color
non map           (208MB)
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.