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Compact Reconnaissance Imaging Spectrometer for Mars (CRISM) on Mars Reconnaissance Orbiter (MRO)
Applied Physics Laboratory, Laurel, Maryland, USA
Department of Earth and Planetary Sciences, Washington University, St. Louis, Missouri, USA
Applied Physics Laboratory, Laurel, Maryland, USA
Applied Physics Laboratory, Laurel, Maryland, USA
Institut d'Astrophysique Spatiale, Orsay, France
NASA Ames Research Center, Moffett Field, California, USA
Applied Physics Laboratory, Laurel, Maryland, USA
Applied Physics Laboratory, Laurel, Maryland, USA
Applied Physics Laboratory, Laurel, Maryland, USA
Space Science Institute, Boulder, Colorado, USA
Applied Physics Laboratory, Laurel, Maryland, USA
NASA Ames Research Center, Moffett Field, California, USA
Applied Coherent Technology, Herndon, Virginia, USA
Applied Physics Laboratory, Laurel, Maryland, USA
NASA Jet Propulsion Laboratory, Pasadena, California, USA
Department of Earth and Planetary Sciences, Washington University, St. Louis, Missouri, USA
Applied Physics Laboratory, Laurel, Maryland, USA
Applied Coherent Technology, Herndon, Virginia, USA
Applied Physics Laboratory, Laurel, Maryland, USA
Applied Physics Laboratory, Laurel, Maryland, USA
Applied Physics Laboratory, Laurel, Maryland, USA
Applied Physics Laboratory, Laurel, Maryland, USA
Applied Physics Laboratory, Laurel, Maryland, USA
Applied Physics Laboratory, Laurel, Maryland, USA
Applied Physics Laboratory, Laurel, Maryland, USA
Applied Physics Laboratory, Laurel, Maryland, USA
Applied Physics Laboratory, Laurel, Maryland, USA
Applied Coherent Technology, Herndon, Virginia, USA
NASA Jet Propulsion Laboratory, Pasadena, California, USA
Applied Physics Laboratory, Laurel, Maryland, USA
Department of Earth and Planetary Sciences, Washington University, St. Louis, Missouri, USA
NASA Johnson Space Center, Houston, Texas, USA
Department of Geological Sciences, Brown University, Providence, Rhode Island, USA
Department of Geological Sciences, Brown University, Providence, Rhode Island, USA
Applied Physics Laboratory, Laurel, Maryland, USA
Center for Planetary Sciences, Northwestern University, Evanston, Illinois, USA
NASA Ames Research Center, Moffett Field, California, USA
Applied Physics Laboratory, Laurel, Maryland, USA
Applied Physics Laboratory, Laurel, Maryland, USA
Applied Physics Laboratory, Laurel, Maryland, USA
Applied Physics Laboratory, Laurel, Maryland, USA
Department of Earth and Planetary Sciences, Washington University, St. Louis, Missouri, USA
NASA Goddard Space Flight Center, Greenbelt, Maryland, USA
Applied Physics Laboratory, Laurel, Maryland, USA
Applied Physics Laboratory, Laurel, Maryland, USA
Applied Physics Laboratory, Laurel, Maryland, USA
Applied Physics Laboratory, Laurel, Maryland, USA
Applied Physics Laboratory, Laurel, Maryland, USA
Applied Physics Laboratory, Laurel, Maryland, USA
Space Science Institute, Boulder, Colorado, USA
The Compact Reconnaissance Imaging Spectrometer for Mars (CRISM) is a hyperspectral imager on the Mars Reconnaissance Orbiter (MRO) spacecraft. CRISM consists of three subassemblies, a gimbaled Optical Sensor Unit (OSU), a Data Processing Unit (DPU), and the Gimbal Motor Electronics (GME). CRISM's objectives are (1) to map the entire surface using a subset of bands to characterize crustal mineralogy, (2) to map the mineralogy of key areas at high spectral and spatial resolution, and (3) to measure spatial and seasonal variations in the atmosphere. These objectives are addressed using three major types of observations. In multispectral mapping mode, with the OSU pointed at planet nadir, data are collected at a subset of 72 wavelengths covering key mineralogic absorptions and binned to pixel footprints of 100 or 200 m/pixel. Nearly the entire planet can be mapped in this fashion. In targeted mode the OSU is scanned to remove most along-track motion, and a region of interest is mapped at full spatial and spectral resolution (15–19 m/pixel, 362–3920 nm at 6.55 nm/channel). Ten additional abbreviated, spatially binned images are taken before and after the main image, providing an emission phase function (EPF) of the site for atmospheric study and correction of surface spectra for atmospheric effects. In atmospheric mode, only the EPF is acquired. Global grids of the resulting lower data volume observations are taken repeatedly throughout the Martian year to measure seasonal variations in atmospheric properties. Raw, calibrated, and map-projected data are delivered to the community with a spectral library to aid in interpretation.
Received 22 January 2006; accepted 24 January 2007; published 30 May 2007.
Citation: (2007), Compact Reconnaissance Imaging Spectrometer for Mars (CRISM) on Mars Reconnaissance Orbiter (MRO), J. Geophys. Res., 112, E05S03, doi:10.1029/2006JE002682.
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