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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 the abundance of hydrogen in the shallow subsurface. [The GRS is a rebuild of the instrument lost with the — NASA KSC · 2001. ABD devlet eseri: kamu mali, ticari islerde de serbestce kullanilabilir.
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