Abstract
New determination of the Earth orientation parameters (EOP), based on optical astrometry observations since the beginning of the century, is now under preparation by the Working group established by Commission 19 of the IAU. The Hipparcos catalog is to define the celestial reference frame in which the new series of EOP are to be described, The novelties of the prepared solution are the higher resolution (5 days) and more parameters estimated from the solution (celestial pole offsets, rheological parameters of the Earth, certain instrumental constants). The mathematical model of the solution is described, and the results based on the observations made with 46 instruments at 29 observatories and a preliminary Hipparcos catalog are presented.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Argus, D.F. and Gordon, R.G.: 1991, “No-net-rotation model of current plate velocities incorporating plate motion model NUVEI-1”, Geophys. Res. Lett. 18, 2039–2042.
Bizouard, Ch., Capitaine, N,, Ron, C., and Vondrák, J.: 1996, “Principal term of nutation from the combination of VLBI observations and optical astrometry”, this volume.
Čepek, A.: 1994, “On solving normal equations of Earth orientation parameters”, Acta Polytechnica 34, 5–9.
Feissel, M.: 1986, private communication.
Kovalevsky, J.: 1996, private communication.
Lindegren, L. and Kovalevsky, J.: 1995, “Linking the Hipparcos Catalogue to the extragalactic reference system”, Astron. Astrophys. 304, 189–201.
Ma, C.: 1995, private communication.
McCarthy, D.D.: 1970, “Reduction method and star positions for Washington and Richmond Photographic Zenith Tube”, Master thesis, University of Virginia.
McCarthy, D.D.: 1992, “IERS Standards (1992)”, IERS Tech, Note 13, Obs. de Paris.
Pešek, I.: 1995, “Systematic deformations of the apparent almucantar in homogenization astrolabe data for new solution of Earth orientation parameters from optical astrometry”, Acta Polytechnica 35, 5–17.
Pešek, I., Vondrák, J., Chollet, F., and Noel, F.: 1993, “Systematic deformations of the apparent almucantar as derived from Danjon astrolabes in Paris and Santiago de Chile”, Astron. Astrophys. 274, 621–626.
Scherneck, H.-G.: 1995, private communication.
Turon, C. and Morin, D.: 1995, private communication.
Turon, C. and Morin, D.: 1996, private communication.
Vondrák, J.: 1991, “Calculation of the new series of the Earth orientation parameters in the Hipparcos reference frame”, Bull. Astron. Inst. Czechosl. 42, 283–294.
Vondrák, J. and Ron, C.: 1994, “Polar motion and nutation from astrometric observations after 1900”, in: Dynamics and Astrometry of Natural and Artificial Celestial Bodies (K. Kurzynska, F. Barlier, P.K. Seidelmann, I. Wytrzyszczak, eds), Astronomical Observatory, Poznań, 39–44.
Vondrák, J., Feissel, M., and Essaïfi, N.: 1992, “Expected accuracy of the 1900–1990 Earth orientation parameters in the Hipparcos reference frame”, Astron. Astrophys. 262, 329–340.
Vondrák, J., Ron, C., and Čepek, A.: 1993, “New solution of polar motion and celestial pole offsets 1900–1978 from ILS observations”, Wiss. Z. TU Dresden 42, 74–77.
Vondrák, J., Ron, C., and Čepek, A.: 1994, “Determination of polar motion, celestial pole offsets and universal time by optical astrometry since the beginning of the century”, in: Systèmes de Référence Spatio-temporels, Journées 1994 (N. Capitaine, ed.), Paris, 128–133.
Vondrák, J., Ron, C., Pešek, I., and Čepek, A.: 1995, “New global solution of Earth orientation parameters from optical astrometry in 1900–1990”, Astron. Astrophys. 297, 899–906.
Vondrák, J., Ron, C., and Pešek, I.: 1996, “Using the Earth orientation parameters to link the Hipparcos and VLBI reference frames”, Astron. Astrophys., in press.
Yoder, F., Williams, J.G., and Parke, M.E.: 1981, “Tidal variations of Earth rotation”, J. Geophys. Res. 86, 881–891.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Vondrak, J., Ron, C. & Pešek, I. Earth rotation in the hipparcos reference frame. Celestial Mech Dyn Astr 66, 115–122 (1996). https://doi.org/10.1007/BF00048830
Issue Date:
DOI: https://doi.org/10.1007/BF00048830