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Pancam multispectral imaging results from the Opportunity Rover at Meridiani PlanumPanoramic Camera (Pancam) images from Meridiani Planum reveal a low-albedo, generally flat, and relatively rock-free surface. Within and around impact craters and fractures, laminated outcrop rocks with higher albedo are observed. Fine-grained materials include dark sand, bright ferric iron-rich dust, angular rock clasts, and millimeter-size spheroidal granules that are eroding out of the laminated rocks. Spectra of sand, clasts, and one dark plains rock are consistent with mafic silicates such as pyroxene and olivine. Spectra of both the spherules and the laminated outcrop materials indicate the presence of crystalline ferric oxides or oxyhydroxides. Atmospheric observations show a steady decline in dust opacity during the mission. Astronomical observations captured solar transits by Phobos and Deimos and time-lapse observations of sunsets.
Document ID
20050148620
Acquisition Source
Johnson Space Center
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Bell, J. F., III
(Cornell Univ. Ithaca, NY, United States)
Squyres, S. W.
(Cornell Univ. Ithaca, NY, United States)
Arvidson, R. E.
(Washington Univ. Saint Louis, MO, United States)
Arneson, H. M.
(Cornell Univ. Ithaca, NY, United States)
Bass, D.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Calvin, W.
(Nevada Univ. Reno, NV, United States)
Farrand, W. H.
(Space Science Inst. Boulder, CO, United States)
Goetz, W.
(Copenhagen Univ. Denmark)
Golombek, M.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Greeley, R.
(Arizona State Univ. Tempe, AZ, United States)
Grotzinger, J.
(Massachusetts Inst. of Tech. Cambridge, MA, United States)
Guinness, E.
(Washington Univ. Saint Louis, MO, United States)
Hayes, A. G.
(Cornell Univ. Ithaca, NY, United States)
Hubbard, M. Y. H.
(Cornell Univ. Ithaca, NY, United States)
Herkenhoff, K. E.
(Geological Survey Flagstaff, AZ, United States)
Johnson, M. J.
(Cornell Univ. Ithaca, NY, United States)
Johnson, J. R.
(Geological Survey Flagstaff, AZ, United States)
Joseph, J.
(Cornell Univ. Ithaca, NY, United States)
Kinch, K. M.
(Aarhus Univ. Denmark)
Lemmon, M. T.
(Texas A&M Univ. College Station, TX, United States)
Li, R.
(Ohio State Univ. Columbus, OH, United States)
Madsen, M. B.
(Copenhagen Univ. Denmark)
Maki, J. N.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Malin, M.
(Malin Space Science Systems San Diego, CA, United States)
McCartney, E.
(Cornell Univ. Ithaca, NY, United States)
Date Acquired
August 23, 2013
Publication Date
December 3, 2004
Publication Information
Publication: Science
Volume: 306
Issue: 5702
ISSN: 0036-8075
Subject Category
Lunar And Planetary Science And Exploration
Distribution Limits
Public
Copyright
Other

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