NASA Mars Odyssey THEMIS Image: Dust Devils

Status Report From: Mars Odyssey THEMIS
Posted: Tuesday, November 25, 2003

Medium image for 20031125a
Image Context:
Context image for 20031125a
Context image credit: NASA/Mars Orbiter Laser Altimeter (MOLA) Team
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Abundant dust devil tracks dominate the scene in this THEMIS visible image. The dark streaks across much of the surface are formed when dust devils sweep up the dust and reveal the darker underlying terrain. Notice how the dust devil tracks are continuous over changes in topography (e.g. crater rims) and how the lengths and thicknesses of the tracks vary. This indicates that the dust devils vary in their size and duration.

[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-61.4   InstrumentVIS
Longitude120.2E (239.8W)   Resolution (m)19
Image Size (pixels)3510x1543   Image Size (km)66.7x29.3

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