Status Report

NASA Mars Odyssey THEMIS Image: Fractures in Tharsis Tholus

By SpaceRef Editor
March 22, 2005
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Medium image for 20050322a

Image Context:

Context image for 20050322a
Context image credit: NASA/Mars Orbiter Laser Altimeter (MOLA) Team
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ParameterValue ParameterValue
Latitude13.5 &nbsp InstrumentVIS
Longitude268.9E (91.1W) &nbsp Resolution (m)19
Image Size (pixels)3050×1370 &nbsp Image Size (km)58×26


Full data on this image has now been released via the THEMIS Data Releases website.



In the upper left corner of this VIS image are a series

of fractures. Where the fractures are exposed on the surface

it is impossible to tell the plane of the fracture; however

where the fractures are visible in the cliff wall it is

possible to see that the fractures dip to the north. This

image shows part of the caldera of Tharsis Tholus.


[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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