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Linking the Dynamical Reference frame to the ICRF

Published online by Cambridge University Press:  14 August 2015

E.M. Standish
E.M. Standish*
Affiliation:
Caltech/JPL JPL 301-150; Pasadena, CA 91109 USA. ems@smyles.jpl.nasa.gov

Abstract

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The latest JPL planetary and lunar ephemerides, DE405, are referenced to the International Celestial Reference Frame (ICRF) with an accuracy that approaches 1 mas for the four innermost planets, the sun, and the moon. This has been accomplished mainly by 18 VLBI observations of the Magellan Spacecraft in orbit around Venus. The ephemeris of Jupiter, however, is not well-determined since the various observations are not consistent within each other. The outer four planets continue to rely almost entirely upon optical observations; their ephemeris uncertainties lie in the 100-200 mas range.

References

Folkner, W.M., Charlot, P., Finger, M.H., Williams, J.G., Sovers, O.J., Newhall, XX, and Standish, E.M.: 1993, “Determination of the extragalactic frame tie from joint analysis of radio interferometric and lunar laser ranging measurements”, Astron. Astrophys., 287, 279–289.Google Scholar
Standish, E.M. & Williams, J.G.: 1990, “Dynamical Reference Frame in the Planetary and Earth-Moon Systems”, in “Inertial Coordinate System on the Sky” (Lieske, J.H. and Abalakin, V.K., eds.) Kluwer Academic Publishers, Dordrecht, 173–181.Google Scholar
Williams, J.G.: 1984, “Determining Asteroid Masses from Perturbations on Mars”, Icarus 57, 1–13.Google Scholar