![Click here for larger version of PIA11793](https://webarchive.library.unt.edu/eot2008/20090901033834im_/http://photojournal.jpl.nasa.gov/figures/PIA11793_fig1_thumb.jpg)
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The lower portion of this image from the Thermal Emission Imaging System
camera (THEMIS) on NASA's Mars Odyssey orbiter shows a crater about 16
kilometers (10 miles) in diameter with features studied as evidence of
deposition or erosion. The crater is centered at 40.32 degrees south
latitude and 132.5 degrees east longitude, in the eastern portion of the
Hellas basin on Mars. It has gullies and arcuate ridges on its north,
pole-facing interior wall. This crater is in the center of a larger
(60-kilometer or 37-mile diameter) crater with lobate flows on its north,
interior wall. The image, number V07798008 in the THEMIS catalog, covers a
swath of ground 17.4 kilometers (10.8 miles) wide.
NASA's Jet Propulsion Laboratory manages the Mars Odyssey mission for
NASA's Office of Space Science. THEMIS was developed by Arizona State
University in collaboration with Raytheon Santa Barbara Remote Sensing.
The THEMIS investigation is led by Dr. Philip Christensen at Arizona State
University. Lockheed Martin Astronautics, Denver, is the prime contractor
for the Odyssey project, and developed and built the orbiter. Mission
operations are conducted jointly from Lockheed Martin and from JPL, a
division of the California Institute of Technology in Pasadena.