Physics
Scientific paper
Dec 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001agufm.p41a..08s&link_type=abstract
American Geophysical Union, Fall Meeting 2001, abstract #P41A-08
Physics
5464 Remote Sensing, 5470 Surface Materials And Properties
Scientific paper
The 2001 Mars Odyssey Mission was successfully launched on April 7, 2001 at the first launch opportunity. The spacecraft will be placed into, nominally, a 19-hour orbit on the evening of October 23. About one week later, an aerobraking sequence will commence to put the spacecraft into a 2 hour, 400 km, circular, polar orbit by early January, 2002. Science observations were taken during cruise and will continue during aerobraking primarily for instrument calibration. The mission will address many of the questions regarding water that have been raised by analysis of the Mars Global Surveyor data. The several terabit data set will provide a basis for landing site selection for future landed science investigations and sample return. Odyssey has three science experiments, the Gamma Ray Spectrometer (GRS), the Mars Radiation Environment Experiment (MARIE), and the Thermal Emission Imaging System (THEMIS). The GRS will acquire a global map of the elemental composition of the surface. One of the objectives is to map the abundance of hydrogen in the shallow subsurface at 300 to 400 km resolution. MARIE will characterize the Mars radiation environment for radiation-related risk to human explorers. THEMIS will map the mineralogy and morphology of the Martian surface using a high-resolution camera and a thermal infrared imaging spectrometer with 100m resolution at 10 bands between 6.5 and14.5 microns. The 18m resolution imaging mode of THEMIS can provide a global high resolution map that would reveal the global distribution of water-related features.
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