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Science. 2004 Aug 6;305(5685):821-4.

Localization and physical properties experiments conducted by Spirit at Gusev Crater.

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  • 1Department of Earth and Planetary Sciences, Washington University, St. Louis, MO 63130, USA.

Abstract

The precise location and relative elevation of Spirit during its traverses from the Columbia Memorial station to Bonneville crater were determined with bundle-adjusted retrievals from rover wheel turns, suspension and tilt angles, and overlapping images. Physical properties experiments show a decrease of 0.2% per Mars solar day in solar cell output resulting from deposition of airborne dust, cohesive soil-like deposits in plains and hollows, bright and dark rock coatings, and relatively weak volcanic rocks of basaltic composition. Volcanic, impact, aeolian, and water-related processes produced the encountered landforms and materials.

PMID:
15297662
[PubMed - indexed for MEDLINE]
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