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Science 9 March 1979:
Vol. 203. no. 4384, pp. 1006 - 1010
DOI: 10.1126/science.203.4384.1006
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Articles

Mars Gravity: High-Resolution Results from Viking Orbiter 2

WILLIAM L. SJOGREN 1

1 Jet Propulsion Laboratory, California Institute of Technology, Pasadena 91103

Doppler radio-tracking data have provided detailed measurements for a martian gravity map extending from 30°S to 65°N in latitude and through 360° of longitude. The feature resolution is approximately 500 kilometers, revealing a huge anomaly associated with Olympus Mons, a mascon in Isidis Planitia, and other anomalies correlated with volcanic structure. Olympus Mons has been modeled with a 600-kilometer surface disk having a mass of 8.7 x 1021grams

Submitted on September 11, 1978
Revised on December 1, 1978


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Tectonic Evolution of the Terrestrial Planets.
J. W. Head, J. W. Head, and S. C. Solomon (1981)
Science 213, 62-76
   Abstract »    PDF »
Gravity Field of Venus: A Preliminary Analysis.
R. J. PHILLIPS, W. L. SJOGREN, E. A. ABBOTT, J. C. SMITH, R. N. WIMBERLY, and C. A. WAGNER (1979)
Science 205, 93-96
   Abstract »    PDF »


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