Western Rim Region of Korolev Crater
NASA/JPL-Caltech/UArizona
Western Rim Region of Korolev Crater
PSP_007961_2530  Science Theme: Fluvial Processes
This image was originally suggested by Ehsan Sanaei's high school astronomy club in Yazd, Iran. They write, "(We are interested in) exploring the impact region near the Northern Martian pole and observing the contrast between ice-covered and [non-ice covered] regions."

Mrs. Stoica's 9th grade class, at Tudor Vianu High-School of Computer Science, in Bucharest, Romania, helped to analyze the image by writing that "we observe a major crater, a small mountain chain, dunes and a series of small valleys and crevasses which (contain) ice."

Indeed, this image shows part of the western rim of Korolev Crater, a prominent 80 kilometer diameter crater located in the Northern polar region. It was taken in northern spring and shows dark regions of dust and sediment and bright regions of ice and frost. At highest resolution both bright and dark areas of the surface are covered by polygonal fracture patterns. Although much of the ice has likely started to sublimate (change from a solid to a gas) in the darker regions, ice fills the fractures.



Written by: Ginny Gulick  (19 November 2008)
 
Acquisition date
07 April 2008

Local Mars time
14:30

Latitude (centered)
72.899°

Longitude (East)
162.006°

Spacecraft altitude
317.8 km (197.5 miles)

Original image scale range
63.6 cm/pixel (with 2 x 2 binning) so objects ~191 cm across are resolved

Map projected scale
50 cm/pixel

Map projection
Polarstereographic

Emission angle
0.2°

Phase angle
56.5°

Solar incidence angle
56°, with the Sun about 34° above the horizon

Solar longitude
55.7°, Northern Spring

For non-map projected images
North azimuth:  100°
Sub-solar azimuth:  322.7°
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non-map           (170MB)

Merged IRB
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Merged RGB
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RGB color
non map           (148MB)
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.