Status Report

NASA Mars Odyssey THEMIS Image: Hematite Outlier and Sand Dunes

By SpaceRef Editor
December 4, 2003
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Medium image for 20031204a

Image Context:

Context image for 20031204a
Context image credit: NASA/Mars Orbiter Laser Altimeter (MOLA) Team
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This image shows a crater just south of the edge of the famous hematite-bearing
surface, which is visible in the context image as a smooth area to the north. The
crater has two features of immediate note. The first is a layered mound in the north
part of the crater floor. This mound contains hematite, and it is an outlying remnant
of the greater deposits to the north that have otherwise completely disappeared in
this crater. The second feature is a dune field in the center of the crater floor, with
dark dunes indicating winds from the northwest. The dunes grade into a dark sand
sheet with no coherent structure, indicating that the sand layer thins out to the
south and east.

[Source: ASU THEMIS Science Team]

Note: this THEMIS visual image has not been radiometrically nor geometrically calibrated for this preliminary release. An empirical correction has been performed to remove instrumental effects. A linear shift has been applied in the cross-track and down-track direction to approximate spacecraft and planetary motion. Fully calibrated and geometrically projected images will be released through the Planetary Data System in accordance with Project policies at a later time.

NASA’s Jet Propulsion Laboratory manages the 2001 Mars Odyssey mission for NASA’s Office of Space Science, Washington, D.C. The Thermal Emission Imaging System (THEMIS) was developed by Arizona State University, Tempe, 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.

Image Credit: NASA/JPL/Arizona State University

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ParameterValue ParameterValue
Latitude-4.4 &nbsp InstrumentVIS
Longitude357.3E (2.7W) &nbsp Resolution (m)19
Image Size (pixels)3231×1395 &nbsp Image Size (km)61.4×26.5

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