Pancam multispectral imaging results from the Spirit Rover at Gusev Crater.
Panoramic Camera images at Gusev crater reveal a rock-strewn surface interspersed with high- to moderate-albedo fine-grained deposits occurring in part as drifts or in small circular swales or hollows. Optically thick coatings of fine-grained ferric iron-rich dust dominate most bright soil and rock surfaces. Spectra of some darker rock surfaces and rock regions exposed by brushing or grinding show near-infrared spectral signatures consistent with the presence of mafic silicates such as pyroxene or olivine. Atmospheric observations show a steady decline in dust opacity during the mission, and astronomical observations captured solar transits by the martian moons, Phobos and Deimos, as well as a view of Earth from the martian surface.
Cornell University, Ithaca, NY 14853-6801, USA. jfb8@cornell.edu
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D001272:Atmosphere; D019419:Evolution, Planetary; D005118:Extraterrestrial Environment; D005290:Ferric Compounds; D019015:Geologic Sediments; D058085:Iron Compounds; D018535:Mars; D008903:Minerals; D017640:Silicates; D016082:Solar System; D013057:Spectrum Analysis; D014867:Water
D005290:Ferric Compounds; D058085:Iron Compounds; D008903:Minerals; D017640:Silicates; D014867:Water; C000499:ferric oxide