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Réf : S07736

Thème : Essais - Constructions - Satellites - Sondes - Fusées  (2314 images)

Titre : Technicians examine the Gamma Ray Spectrometer (GRS) before it is moved to be

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(01/24/2001) --- Technicians examine the Gamma Ray Spectrometer (GRS) before it is moved to be installed on the Mars Odyssey Orbiter in the Spacecraft Assembly and Encapsulation Facility II (SAEF II).; 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 Mars Observer mission.] The MARIE will characterize aspects of the near-space radiation environment with regards to the radiation-related risk to human explorers. The Mars Odyssey Orbiter is scheduled for launch on April 7, 2001, aboard a Delta 7925 rocket from Launch Pad 17-A, Cape Canaveral Air Force Station