Status Report

NASA Mars Odyssey THEMIS Image: Refilled Crater

By SpaceRef Editor

July 25, 2005

Filed under Daily Themis Pictures, Mars, Mars Odyssey THEMIS, US

Image Context:

Context image for 20050724A

Context image credit: NASA/Mars Orbiter Laser Altimeter (MOLA) Team
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Parameter	Value		Parameter	Value
Latitude	13.5	&nbsp	Instrument	VIS
Longitude	284.3E (75.7W)	&nbsp	Resolution (m)	36
Image Size (pixels)	611×504	&nbsp	Image Size (km)	22.4×18.5

The interior of this crater has undergone at least two

episodes of modification. At some time the crater interior was

filled by material to approximately the high of the crater rim.

Then erosion occurs, removing some of the infill but leaving the

two plateaus in the center. Finally, the crater has been infilled

a second time. The latest fill is lava.

[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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