Status Report

NASA Mars Odyssey THEMIS Image: Nirgal Vallis Nighttime IR

By SpaceRef Editor

November 25, 2004

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

Image Context:

Context image for 20041125A

Context image credit: NASA/Mars Orbiter Laser Altimeter (MOLA) Team
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Parameter	Value		Parameter	Value
Latitude	-28.4	&nbsp	Instrument	IR
Longitude	317.6E (42.4W)	&nbsp	Resolution (m)	100
Image Size (pixels)	990×320	&nbsp	Image Size (km)	99×32

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

This nighttime IR image is of Nirgal Vallis, a long fluvial channel that flows

south (towards top of image) into the margin of Argyre Basin.

NOTE: in nighttime images North is to the bottom of the image.

[Source: ASU THEMIS Science Team]

>Note: this THEMIS infrared 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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