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New constants for Sampson-Lieske theory of the Galilean satellites of Jupiter from mutual occultation data

Published online by Cambridge University Press:  25 May 2016

R. Vasundhara ,
J.E. Arlot  and
P. Descamps
R. Vasundhara
Affiliation:
Indian Institute of Astrophysics, Bangalore 560034, India
J.E. Arlot
Affiliation:
Bureau des Longitudes, URA 0707 CNRS, 77 avenue Denfert-Rochereau, 75014 Paris, France
P. Descamps
Affiliation:
Bureau des Longitudes, URA 0707 CNRS, 77 avenue Denfert-Rochereau, 75014 Paris, France

Abstract

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New constants for Sampson-Lieske theory of the Galilean Satellites have been derived using 6360 individual photographic positions (1891–1990) and 438 pseudo astrometric positions from mutual occultations during 1973, 1979, 1985 and 1991. Using these new sets of constants, significant improvement is noticed in the O-C values of the sky plane coordinates of the mutual event data set and residuals in longitude for Io and Europa are found to improve. Problems concerning the inclusion of mutual event data in attempting evaluation of secular variations of the mean motions of the satellites are discussed.

Information

Type
Part III - Satellites: Theory and Ephemerides
Information
Symposium - International Astronomical Union , Volume 172: Dynamics, Ephemerides and Astrometry of the Solar System , 1996 , pp. 145 - 150
Copyright
Copyright © Kluwer 1996 

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