PIA03489: Global Map, High-Energy Neutrons


Global Map, High-Energy Neutrons

Caption:

A high content of hydrogen in Mars' southern polar region is apparent in this global map of high-energy neutrons measured by the high-energy neutron detector on NASA's 2001 Mars Odyssey spacecraft.

The neutrons were measured by the medium detector (in counts per second) during the first week of mapping, in February 2002. Space background neutrons have been subtracted. The pixels are 10 degrees by 10 degrees.

Background Info:

NASA's Jet Propulsion Laboratory, Pasadena, Calif., manages the 2001 Mars Odyssey mission for NASA's Office of Space Science, Washington, D.C. The high-energy neutron detector was supplied by the Russian Aviation and Space Agency and is one of the instruments in the gamma ray spectrometer instrument suite, which was supplied by the University of Arizona, Tucson. Lockheed Martin Astronautics, Denver, is the prime contractor for the project, and developed and built the orbiter. See http://grs.lpl.arizona.edu for more information. Odyssey mission operations are conducted jointly from Lockheed Martin and from JPL, a division of the California Institute of Technology in Pasadena.

Cataloging Keywords:

Name Value Additional Values
Target Mars
System
Target Type Planet
Mission 2001 Mars Odyssey
Instrument Host Mars Odyssey
Host Type Orbiter
Instrument Gamma Ray Spectrometer (GRS)
Detector
Extra Keywords Color, Map
Acquisition Date
Release Date 2002-03-06
Date in Caption
Image Credit NASA/Jet Propulsion Laboratory/University of Arizona
Source photojournal.jpl.nasa.gov/catalog/PIA03489
Identifier PIA03489