Unusual Crater with Lava Flows near Arsia Mons
Unusual Crater with Lava Flows near Arsia Mons
ESP_017347_1585  Science Theme: Volcanic Processes
This image was targeted to look at lava flows in east Daedalia Planum. The flows here have different brightnesses (reflectivity) which may indicate different compositions.

The cutout shows another aspect of the image. A small, 0.5 kilometer diameter crater shows a regular structure of aligned ridges in its interior. The origin of this structure is unclear but may be related to the breach in the crater rim to the left.

Written by: Nicolas Thomas (narration: Tre Gibbs)  (19 September 2012)
Acquisition date
09 April 2010

Local Mars time

Latitude (centered)

Longitude (East)

Spacecraft altitude
251.4 km (156.3 miles)

Original image scale range
50.3 cm/pixel (with 2 x 2 binning) so objects ~151 cm across are resolved

Map projected scale
50 cm/pixel and North is up

Map projection

Emission angle

Phase angle

Solar incidence angle
66°, with the Sun about 24° above the horizon

Solar longitude
75.1°, Northern Spring

For non-map projected images
North azimuth:  97°
Sub-solar azimuth:  47.5°
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   (352MB)

IRB color
map-projected   (186MB)

Black and white
map-projected  (178MB)
non-map           (185MB)

IRB color
map projected  (66MB)
non-map           (208MB)

Merged IRB
map projected  (389MB)

Merged RGB
map-projected  (360MB)

RGB color
non map           (192MB)
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’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.