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Carlsberg Positions of Planets Compared with JPL DE403

Published online by Cambridge University Press:  12 April 2016

L.V. Morrison  and
M.E. Buontempo
L.V. Morrison
Affiliation:
Royal Greenwich Observatory Cambridge, UK
M.E. Buontempo
Affiliation:
Royal Greenwich Observatory Cambridge, UK

Abstract

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The Carlsberg meridian telescope has made nearly 20 000 observations of outer Solar System objects since it began operation in 1984. A preliminary version of the Hipparcos catalogue has been used to refer the positions to the International Celestial Reference Frame (ICRF). The observed positions of the major planets are compared with JPL DE403 which is also referred to the ICRF. The agreement with DE403 is good, except for the declination of Jupiter where there is a systematic difference reaching 015 in 1995. The cause of this discrepancy is being investigated at JPL with recent VLBI observations of Galileo.

Type
Observational Techniques and Catalogues
Information
International Astronomical Union Colloquium , Volume 165: Dynamics and Astrometry of Natural and Artificial Celestial Bodies , 1997 , pp. 541 - 546
Copyright
Copyright © Kluwer 1997

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