                          THEMIS: Image Detail

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Disappearing Act (Released 2 December 2003)

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 [9] Image Context:

Context image credit: NASA/Mars Orbiter Laser Altimeter (MOLA) Team
[ Find on map: Javascript [10]  version ]
[ Find on map: CGI [11]  version ]
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Just across Ares Vallis from Aram Chaos lies a heavily eroded crater
filled by material that is on its way out. This two-frame mosaic of
THEMIS VIS images shows the floor of a crater that was filled by
material of unknown origin. That material is now being eroded in a
manner that is quite enigmatic. Note that the irregular depressions
have varying depths across the scene. It appears that the crater fill
material begins to erode through the formation of depressions that then
deepen over time. Why the depressions form in the first place is a
mystery.

[Questions? Email images@themis.asu.edu [12] ]

[Source: ASU THEMIS Science Team]

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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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]

[ Show Full-Size Image (PNG) [15]  ] [ Show Full-Size Image (TIF) [16]
]

[ Printer-friendly version [17]  ]

Parameter   Value       Parameter   Value

Latitude   2.4        Instrument   VIS

Longitude   343.6E (16.4W)        Resolution (m)   19

Image Size (pixels)   3226x1409        Image Size (km)   61.3x26.8

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  [9] fullimages/20031202a.jpg
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  [14] /fullimages/20031202a.jpg
  [15] /fullimages/20031202a.png
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