Collection:
NASA Planetary Photo Journal Collection Collection NASA Planetary Photo Journal Collection Collection
Title:
Global Map of Thermal Neutrons Title Global Map of Thermal Neutrons Title
Original Caption Released with Image:
Observations by NASA's 2001 Mars Odyssey spacecraft show a global view of Mars in low energy, or thermal, neutrons. Thermal neutrons are sensitive to the presence of hydrogen and the presence of carbon dioxide, in this case "dry ice" frost. The red area at the top of the map indicates that about one meter (three feet) of carbon dioxide frost covers the surface, as it does every Mars winter in the polar regions. Soil enriched by hydrogen is indicated by the deep blue colors on the map, which show a low intensity of thermal neutrons. An enhancement of thermal neutrons close to the south pole, seen as a light green color, indicates the presence of residual carbon dioxide in the south polar cap, even though the annual frost dissipated from that region during southern summer. NASA's Jet Propulsion Laboratory manages the 2001 Mars Odyssey mission for NASA's Office of Space Science, 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, a division of the California Institute of Technology in Pasadena. Original_Caption_Rel eased_with_Image Observations by NASA's 2001 Mars Odyssey spacecraft show a global view of Mars in low energy, or thermal, neutrons. Thermal neutrons are sensitive to the presence of hydrogen and the presence of carbon dioxide, in this case "dry ice" frost. The red area at the top of the map indicates that about one meter (three feet) of carbon dioxide frost covers the surface, as it does every Mars winter in the polar regions. Soil enriched by hydrogen is indicated by the deep blue colors on the map, which show a low intensity of thermal neutrons. An enhancement of thermal neutrons close to the south pole, seen as a light green color, indicates the presence of residual carbon dioxide in the south polar cap, even though the annual frost dissipated from that region during southern summer. NASA's Jet Propulsion Laboratory manages the 2001 Mars Odyssey mission for NASA's Office of Space Science, 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, a division of the California Institute of Technology in Pasadena. Original Caption Released with Image
Addition Date:
2002-05-28 Addition_Date 2002-05-28 Addition Date
Image Credit:
NASA/JPL/University of Arizona/Los Alamos National Laboratories Image_Credit NASA/JPL/University of Arizona/Los Alamos National Laboratories Image Credit
Produced By:
University of Arizona Produced_By University of Arizona Produced By
Mission:
2001 Mars Odyssey Mission 2001 Mars Odyssey Mission
Spacecraft:
2001 Mars Odyssey Spacecraft 2001 Mars Odyssey Spacecraft
Target Name:
Mars Target_Name Mars Target Name
Is a satellite of:
Sol (our sun) Is_a_satellite_of Sol (our sun) Is a satellite of
Instrument:
Gamma Ray Spectrometer Suite Instrument Gamma Ray Spectrometer Suite Instrument
Product Size:
2668 samples x 1371 lines Product_Size 2668 samples x 1371 lines Product Size
facet_what:
Sun facet_what Sun facet_what
facet_what:
Polar facet_what Polar facet_what
facet_what:
Spectrometer facet_what Spectrometer facet_what
facet_what:
Mars facet_what Mars facet_what
facet_what:
2001 Mars Odyssey facet_what 2001 Mars Odyssey facet_what
facet_what:
Gamma Ray Spectrometer Suite facet_what Gamma Ray Spectrometer Suite facet_what
facet_where:
Jet Propulsion Laboratory facet_where Jet Propulsion Laboratory facet_where
facet_where:
Denver facet_where Denver facet_where
facet_where:
Mars facet_where Mars facet_where
facet_where:
Arizona facet_where Arizona facet_where
facet_where:
California facet_where California facet_where
facet_where:
Washington facet_where Washington facet_where
facet_where:
New Mexico facet_where New Mexico facet_where
facet_where:
Jet Propulsion Laboratory (JPL) facet_where Jet Propulsion Laboratory (JPL) facet_where
facet_where:
Washington, D.C. facet_where Washington, D.C. facet_where
facet_where:
Johnson Space Center (JSC) facet_where Johnson Space Center (JSC) facet_where
Image #:
PIA03801 Image_# PIA03801 Image #
UID:
SPD-PHOTJ-PIA03801 UID SPD-PHOTJ-PIA03801 UID
orignial url:
http://photojournal… orignial_url http://photojournal… orignial url

Global Map of Thermal Neutrons

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Global Map of Thermal Neutrons