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The 2001 Mars Odyssey Orbiter sits in the Spacecraft Assembly and Encapsulation Facility (SAEF 2) while components undergo testing. Workers in the foreground check instruments during testing of the UHF antenna. Scheduled for launch April 7, 2001, the orbiter contains three science instruments: THEMIS, the Gamma Ray Spectrometer (GRS), and the Mars Radiation Environment Experiment (MARIE). THEMIS will map the mineralogy and morphology of the Martian surface using a high-resolution camera and a thermal infrared imaging spectrometer. The GRS will achieve global mapping of the elemental compositio…
