PIA20662: A One-Kilometer Crater on the Floor of Saheki Crater
 Target Name:  Mars
 Is a satellite of:  Sol (our sun)
 Mission:  Mars Reconnaissance Orbiter (MRO)
 Spacecraft:  Mars Reconnaissance Orbiter (MRO)
 Instrument:  HiRISE
 Product Size:  2880 x 1800 pixels (w x h)
 Produced By:  University of Arizona/HiRISE-LPL
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 Full-Res TIFF:  PIA20662.tif (15.56 MB)
 Full-Res JPEG:  PIA20662.jpg (691.9 kB)

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This HiRISE image shows several smaller craters that formed on the floor of Saheki Crater, an 85-kilometer diameter impact crater north of Hellas Basin.

The western portion of this crater is covered by alluvial fan-like deposits that emanate from channels that cut into the crater rim. This HiRISE image -- indicated by a white box atop of a colorized THEMIS temperature image of Saheki -- was taken just east of the central uplift, where vividly colored materials now lie exposed in a kilometer-sized crater.

An enhanced color infrared image shows a close-up of the 1-kilometer crater and its contents. The wall of the crater shows a rainbow-like array of bedrock and deposits. Much of this material has been eroded over time and has slumped downwards towards the crater floor, leaving behind chalk-like streaks of color. We can also see reddish and dark-toned layered deposits to the south now covered by the crater's green-toned ejecta.

The University of Arizona, Tucson, operates HiRISE, which was built by Ball Aerospace & Technologies Corp., Boulder, Colo. NASA's Jet Propulsion Laboratory, a division of the California Institute of Technology in Pasadena, manages the Mars Reconnaissance Orbiter Project for NASA's Science Mission Directorate, Washington.

Image Credit:
NASA/JPL-Caltech/Univ. of Arizona

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