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Collection:
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NASA Planetary Photo Journal Collection
Collection
NASA Planetary Photo Journal Collection
Collection
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Title:
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Odyssey/NS
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Original Caption Released with Image:
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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.
Original_Caption_Rel eased_with_Image
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.
Original Caption Released with Image
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Produced By:
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University of Arizona
Produced_By
University of Arizona
Produced By
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Mission:
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2001 Mars Odyssey
Mission
2001 Mars Odyssey
Mission
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Spacecraft:
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2001 Mars Odyssey
Spacecraft
2001 Mars Odyssey
Spacecraft
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Target Name:
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Mars
Target_Name
Mars
Target Name
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Is a satellite of:
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Sol (our sun)
Is_a_satellite_of
Sol (our sun)
Is a satellite of
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Instrument:
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Gamma Ray Spectrometer Suite
Instrument
Gamma Ray Spectrometer Suite
Instrument
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Product Size:
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663 samples x 1024 lines
Product_Size
663 samples x 1024 lines
Product Size
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facet_what:
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Sun
facet_what
Sun
facet_what
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facet_what:
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Spectrometer
facet_what
Spectrometer
facet_what
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facet_what:
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Mars
facet_what
Mars
facet_what
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facet_what:
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2001 Mars Odyssey
facet_what
2001 Mars Odyssey
facet_what
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facet_what:
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Gamma Ray Spectrometer Suite
facet_what
Gamma Ray Spectrometer Suite
facet_what
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facet_where:
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Denver
facet_where
Denver
facet_where
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facet_where:
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Mars
facet_where
Mars
facet_where
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facet_where:
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Arizona
facet_where
Arizona
facet_where
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facet_where:
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California
facet_where
California
facet_where
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facet_where:
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Washington
facet_where
Washington
facet_where
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facet_where:
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New Mexico
facet_where
New Mexico
facet_where
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facet_where:
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Jet Propulsion Laboratory (JPL)
facet_where
Jet Propulsion Laboratory (JPL)
facet_where
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facet_where:
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Washington, D.C.
facet_where
Washington, D.C.
facet_where
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facet_where:
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Johnson Space Center (JSC)
facet_where
Johnson Space Center (JSC)
facet_where
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facet_when:
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November 2002
facet_when
November 2002
facet_when
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facet_when_year:
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2002
facet_when_year
2002
facet_when_year
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Image #:
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PIA03744
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UID:
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SPD-PHOTJ-PIA03744
UID
SPD-PHOTJ-PIA03744
UID
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orignial url:
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orignial_url
orignial url
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