File:PIA03744 Odyssey-NS.tiff
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Summary
[edit]DescriptionPIA03744 Odyssey-NS.tiff |
English: These two views of Mars were made with data taken by the neutron spectrometer component of NASA's Mars Odyssey gamma ray spectrometer suite. These maps show epithermal neutron flux, which is sensitive to the amount of hydrogen present.
The first view was made shortly after the Mars Odyssey science mission began in Feb. 2002, during late summer in the south. The magenta region in the south is due to large amounts of water ice buried a fraction of a meter beneath the surface. The amount of ice is approximately 60 percent by volume. At that time the buried ice in the north was not visible because it was covered with a thick cap of carbon dioxide (dry-ice) frost. The second view was made in November 2002 as Mars enters summer in the north. In this view the ice-rich regions in the north are now visible because the thick carbon dioxide frost has evaporated, and the ice-rich regions in the south are beginning to be obscured by the formation of wintertime seasonal frost. The ice content in the north is even greater than it is in the south, though it is not yet known by how much. JPL, a division of the California Institute of Technology in Pasadena, manages the 2001 Mars Odyssey mission for NASA's Office of Space Science in Washington, D.C. Investigators at Arizona State University in Tempe, the University of Arizona in Tucson and NASA's Johnson Space Center,Houston, operate the science instruments. The gamma-ray spectrometer was provided by the University of Arizona in collaboration with the Russian Aviation and Space Agency, which provided the high-energy neutron detector, and the Los Alamos National Laboratories, New Mexico, which provided the neutron spectrometer. Lockheed Martin Astronautics, Denver, is the prime contractor for the project, and developed and built the orbiter. Mission operations are conducted jointly from Lockheed Martin and from JPL. |
Date | (published) |
Source | Catalog page · Full-res (JPEG · TIFF) |
Author | NASA/JPL/University of Arizona |
Other versions |
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This image or video was catalogued by Jet Propulsion Laboratory of the United States National Aeronautics and Space Administration (NASA) under Photo ID: PIA03744. This tag does not indicate the copyright status of the attached work. A normal copyright tag is still required. See Commons:Licensing. Other languages:
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This media is a product of the 2001 Mars Odyssey mission Credit and attribution belongs to the Gamma Ray Spectrometer (GRS) team, NASA/JPL/University of Arizona |
Licensing
[edit]Public domainPublic domainfalsefalse |
This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.) | ||
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 02:19, 23 January 2018 | 663 × 1,024 (869 KB) | Jarnsax (talk | contribs) | =={{int:filedesc}}== {{NASA Photojournal | catalog = PIA03744 | image = yes | mission = 2001 Mars Odyssey | instrument = Gamma Ray Spectrometer Suite | caption = {{en|These two views of Mars were made with data taken by the... |
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Width | 663 px |
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Height | 1,024 px |
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Compression scheme | LZW |
Pixel composition | RGB |
Number of components | 3 |
Number of rows per strip | 1 |
Horizontal resolution | 72 dpi |
Vertical resolution | 72 dpi |
Data arrangement | chunky format |
Software used | VICAR Program VTIFF |
File change date and time | 09:12, 12 February 2004 |