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Pancam multispectral imaging results from the Spirit Rover at Gusev Crater
J F Bell1, S W Squyres, R E Arvidson
1Cornell University, Ithaca, NY 14853-6801, USA. jfb8@cornell.edu
Science (New York, N.Y.)
|August 7, 2004
Summary
Gusev crater's surface is covered in dust and rocks, with some areas showing mafic silicates. Atmospheric dust decreased during the mission, and unique astronomical views were captured.
Area of Science:
- Planetary Science
- Geology
- Atmospheric Science
Background:
- Gusev crater, Mars, presents a complex geological landscape.
- Surface composition and atmospheric conditions are key areas of Martian exploration.
Purpose of the Study:
- Analyze the surface geology and composition of Gusev crater using Panoramic Camera data.
- Investigate atmospheric changes and capture unique astronomical events during the mission.
Main Methods:
- Utilized Panoramic Camera images to assess surface features and albedo.
- Performed spectral analysis on rock surfaces to identify mineral composition.
- Monitored atmospheric dust opacity and recorded astronomical observations.
Main Results:
- Identified a rock-strewn surface with fine-grained deposits, dust coatings, and ferric iron.
- Spectral signatures indicated the presence of mafic silicates (pyroxene, olivine) in darker rock regions.
- Observed a decrease in atmospheric dust opacity and captured solar transits of Phobos and Deimos.
Conclusions:
- The surface of Gusev crater is shaped by aeolian processes and dust deposition.
- Martian surface rocks contain mafic silicate minerals.
- Atmospheric conditions evolved during the mission, offering opportunities for unique observations.
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