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Technicians guide The Gamma Ray Spectrometer (GRS); into place to be installed on the Mars Odyssey Orbiter in the Spacecraft Assembly and Encapsulation Facility 2 (SAEF 2).; The orbiter will carry three science instruments: the Thermal Emission Imaging System (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 composition of the surface and determine th…
