Status Report

NASA Mars Odyssey THEMIS Image: Craters Filling Craters

By SpaceRef Editor
July 28, 2005
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Medium image for 20050729a

Image Context:

Context image for 20050729a
Context image credit: NASA/Mars Orbiter Laser Altimeter (MOLA) Team
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ParameterValue ParameterValue
Latitude29.6 &nbsp InstrumentVIS
Longitude96.3E (263.7W) &nbsp Resolution (m)18
Image Size (pixels)0x0 &nbsp Image Size (km)0x0

In today’s image the large crater retains its original

bowl shaped interior and the radial surface pattern on the

ejecta. Just to the south is a crater that has been infilled

by ejecta from the larger crater. The overlapping of ejecta

blankets can be used to get relative age relationships, in

this case the smaller crater to the south formed first, and

the larger crater formed sometime later.

[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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