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Science 25 January 1974:
Vol. 183. no. 4122, pp. 322 - 323
DOI: 10.1126/science.183.4122.322
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Articles

Gravitational Parameters of the Jupiter System from the Doppler Tracking of Pioneer 10

J. D. Anderson 1, G. W. Null 1, and S. K. Wong 1

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

Preliminary analyses of Doppler data from Pioneer 10 during its encounter with Jupiter indicate that the mass of Io is about 20 percent greater than previously thought and that Io's mean density is about 3.5 grams per cubic centimeter. A determination of the dynamical flattening of Jupiter (a - b)/a (where a is the semimajor axis and b is the semiminor axis) is found to lie in the neighborhood of 0.065, which agrees with the value determined from satellite perturbations.


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Jupiter: Its Infrared Spectrum from 16 to 40 Micrometers.
J. R. Houck, J. R. Houck, J. B. Pollack, D. Schaack, R. A. Reed, and A. Summers (1975)
Science 189, 720-722
   Abstract »    PDF »
Pioneer 11 Infrared Radiometer Experiment: The Global Heat Balance of Jupiter.
A. P. Ingersoll, A. P. Ingersoll, G. Munch, G. Neugebauer, D. J. Diner, G. S. Orton, B. Schupler, M. Schroeder, S. C. Chase, R. D. Ruiz, et al. (1975)
Science 188, 472-473
   Abstract »    PDF »
Io: A Surface Evaporite Deposit?.
F. P. Fanale, F. P. Fanale, T. V. Johnson, and D. L. Matson (1974)
Science 186, 922-925
   Abstract »    PDF »


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