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Science 5 December 1997:
Vol. 278. no. 5344, pp. 1758 - 1765
DOI: 10.1126/science.278.5344.1758
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Reports
Results from the Mars Pathfinder Camera
P. H. Smith,
*
J. F. Bell III,
N. T. Bridges,
D. T. Britt,
L. Gaddis,
F. Gliem,
R. Greeley,
H. U. Keller,
K. E. Herkenhoff,
S. Hviid,
R. Jaumann,
J.
R. Johnson,
R. L. Kirk,
M. Lemmon,
J. N. Maki,
M. C. Malin,
S. L. Murchie,
J. Oberst,
T. J. Parker,
R. J. Reid,
P. Rueffer,
R. Sablotny,
L. A. Soderblom,
C. Stoker,
R. Sullivan,
N. Thomas,
M. G. Tomasko,
W. Ward,
E. Wegryn
Images of the martian surface returned by the Imager for Mars
Pathfinder (IMP) show a complex surface of ridges and troughs covered
by rocks that have been transported and modified by fluvial, aeolian,
and impact processes. Analysis of the spectral signatures in the scene
(at 440- to 1000-nanometer wavelength) reveal three types of rock and
four classes of soil. Upward-looking IMP images of the predawn sky show
thin, bluish clouds that probably represent water ice forming on local
atmospheric haze (opacity ~0.5). Haze particles are about 1 micrometer in radius and the water vapor column abundance is about 10 precipitable micrometers.
P. H. Smith, D. T. Britt, M. Lemmon, R. J. Reid, M. G. Tomasko, E. Wegryn, Lunar and Planetary Laboratory, University of
Arizona, Tucson, AZ 85721, USA.
J. F. Bell III and R. Sullivan, Cornell University, Ithaca , NY
14853, USA.
N. T. Bridges, K. E. Herkenhoff, J. N. Maki, T. J. Parker, Jet Propulsion Laboratory, California Institute of Technology,
Pasadena, CA 91109, USA.
L. Gaddis, J. R. Johnson, R. L. Kirk, L. A. Soderblom,
W. Ward, U.S. Geological Survey, Flagstaff, AZ 86001, USA.
F. Gliem and P. Rueffer, Technical University of Braunschweig, 38106 Braunschweig, Germany.
R. Greeley, Arizona State University, Tempe, AZ 85287, USA.
H. U. Keller, R. Sablotny, N. Thomas, Max Planck Institute for
Aeronomy, Kathenburg-Lindau, Germany.
S. Hviid, Orsted Laboratory, Niels Bohr Institute for Astronomy, Physics, and Geophysics, Copenhagen University, 2100 Copenhagen Ø, Denmark.
R. Jaumann and J. Oberst, DLR, Berlin, Germany.
M. C. Malin, Malin Space Science Systems, San Diego, CA 92191, USA.
S. L. Murchie, Applied Physics Laboratory, Johns Hopkins
University, Baltimore, MD 21218, USA.
C. Stoker, NASA Ames Research Center, Moffett Field, CA 94035, USA.
*
To whom correspondence should be addressed. E-mail:
psmith{at}lpl.arizona.edu
Read the Full Text
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