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Science 24 April 1970:
Vol. 168. no. 3930, pp. 477 - 479
DOI: 10.1126/science.168.3930.477
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Articles

Lunar Gravity over Large Craters from Apollo 12 Tracking Data

P. Gottlieb 1, P. M. Muller 1, W. L. Sjogren 1, and W. R. Wollenhaupt 2

1 Jet Propulsion Laboratory, Californlia Institute of Technology, Pasadena
2 National Aeronautics anid Space Administration Manned Spacecrcaft Center, Houston, Texas 77058

The Doppler residuals from the Apollo 12 lunar module radio tracking data indicate large negative accelerations over the craters Ptolemaeus and Albategnius. The mass deficienicies required to produce these accelerations are approximately equivalent to the removal of the surface material to a depth of 1 kilometer over the entire area of these craters. Several other features of the gravity fine structure can also be correlated with topography.


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Lunar Topography: First Radar-Interferometer Measurements of the Alphonsus-Ptolemaeus-Arzachel Region.
S. H. Zisk and S. H. Zisk (1972)
Science 178, 977-980
   Abstract »    PDF »
Lunar Gravity via Apollo 14 Doppler Radio Tracking.
W. L. Sjogren, W. L. Sjogren, P. Gottlieb, P. M. Muller, and W. Wollenhaupt (1972)
Science 175, 165-168
   Abstract »    PDF »


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Science. ISSN 0036-8075 (print), 1095-9203 (online)