Status Report

Mars Odyssey THEMIS Image: Ismenia Fossae

By SpaceRef Editor
July 2, 2002
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Medium image for 20020702a

Image Context:
Context image for 20020702a
Context image credit: NASA/Mars Orbiter Laser Altimeter (MOLA) Team
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This THEMIS image is in a region of Mars’ northern hemisphere called Ismenia Fossae. Most of the landforms in this image are the degraded remains of impact crater rim and ejecta from an unnamed crater (75 km diameter) just north of this scene (refer to the context image). The terminus of this ejecta blanket can be seen in the lower third of the image. The hills and other topographic highs of this landscape appear to be mantled. This mantling layer has itself been modified to produce a pitted, knobby surface in places. The presence of water ice in the mantling material is a likely possibility. Also visible in this image are some small degraded craters located primarily in the upper half of this scene.

[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
Latitude40.1 &nbsp InstrumentVIS
Longitude329W (31E) &nbsp Resolution (m)19
Image Size (pixels)3007×1183 &nbsp Image Size (km)57.1×22.5

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