Hostname: page-component-586b7cd67f-t7czq Total loading time: 0 Render date: 2024-11-29T05:23:15.575Z Has data issue: false hasContentIssue false
  • English
  • Français

The Celestial System of the International Earth Rotation Service

Published online by Cambridge University Press:  19 July 2016

E.F. Arias  and
M. Feissel
E.F. Arias
Affiliation:
Central Bureau of IERS, Paris, France and La Plata Observatory/CONICET, Argentina
M. Feissel
Affiliation:
Central Bureau of IERS - Observatoire de ParislURA 1125 du CNRS Observatoire de Paris - 61, avenue de l'Observatoire, F-75014 Paris, France

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

The celestial system of the International Earth Rotation Service (IERS) is materialized by the J2000.0 positions of more than 250 extragalactic compact radio sources observed by VLBI. The source coordinates are evaluated from the combination of individual celestial frames obtained by the Goddard Space Flight Center, the Jet Propulsion Laboratory and the U.S. National Geodetic Survey.

The combination model and the maintenance algorithm are described. To free the IERS celestial frame from inconsistencies due to the inaccuracy of the IAU conventional models for precession and nutation, it is implemented on individual frames which have been obtained in parallel to the adjustment of corrections to the direction of the celestial pole.

The IERS celestial reference frame is consistent with FK5 at a few milliarcsecond level. To be made denser and more accessible for astronomical uses, it will be related to the HIPPARCOS stellar frame.

Type
Part 3: Concepts, Definitions, Models
Information
Symposium - International Astronomical Union , Volume 141: Inertial Coordinate System on the Sky , 1990 , pp. 119 - 128
Copyright
Copyright © Kluwer 1990 

References

Altamimi, Z., Arias, E.F., Boucher, C., Feissel, M., 1989: Earth Orientation determinations: some tests of consistency. IAG Symposium 105. Wilkins, (ed.).CrossRefGoogle Scholar
Aoki, S., Guinot, B., Kaplan, G.H., Kinoshita, H., McCarthy, D.D., Seidelmann, P.K. : 1982: The new definition of Universal Time. Astron.and Astrophys. 105, 359.Google Scholar
Arias, E.F., Feissel, M., Lestrade, J.-F. : 1988. An extragalactic celestial reference frame consistent with the BIH Terrestrial System (1987). BIH Annual Report for 1987 , p.D-113. Observatoire de Paris.Google Scholar
Arias, E.F., and Lestrade, J.-F., 1989: Extended astrometric comparisons between two dense VLBI extragalactic reference frames elaborated at the GSFC and the JPL. Submitted to Astron. and Astrophys. Google Scholar
Argue, N., 1989: The strategy adopted for linking HIPPARCOS to an extragalactic reference frame. This volume. Google Scholar
Boucher, C., and Feissel, M., 1984: Realization of the BIH Terrestrial System. Proc. Internat. Symp. on Space Techniques for Geodynamics , Somogyi, and Reigber, (eds). Res. Inst. of the Hungarian Acad. of Sci. (Sopron, Hungary), Vol. 1, 235.Google Scholar
Carter, W.E., 1987: IERS memorandum, 1 December 1987.Google Scholar
Charlot, P., 1989: 14 extragalactic radio sources mapped at 2.3 and 8.4 GHz with a 24 hour Crustal Dynamics Program VLBI experiment. Astron.and Astrophys. (in press).Google Scholar
Fricke, W., Schwan, H. and Lederle, T., 1988: Fifth Fundamental Catalogue (FK5) , Part 1, Veröffentlichungen ARI, Heidelberg.Google Scholar
Guinot, B., 1979: Basic problems in the kinematics of the rotation of the Earth, IAU Symposium 82 , McCarthy, and Pilkington, (eds.), Reidel.Google Scholar
Herring, T.A., Gwinn, C.R., and Shapiro, I.I., 1986: Geodesy by radio interferometry: study of the forced nutation of the Earth, 1, Data analysis. J. Geophys Res. 91, 4745.Google Scholar
Iag, , 1988: Geodesist's Handbook , Bull. Géod., 62, 337.Google Scholar
Iers, , 1989: Annual Report for 1988 , Observatoire de Paris.Google Scholar
Lestrade, J.-F., Preston, R.A., Mutel, R.L., Niell, A.E. and Phillips, R.B., 1988: Linking the HIPPARCOS Catalog to the VLBI Inertial Reference System, high angular resolution structures and VLBI positions of 10 radio stars, The Second F.A.S.T. Thinkshop , Kovalevsky, J. (ed).Google Scholar
Ma, C., Shaffer, D.B., De Vegt, C., Johnston, K.J., and Russell, J., 1989: Precise radio source positions determined by Mark III VLBI: observations from 1979 to 1988 and a tie to the FK5, Astron. J. (in press).Google Scholar
Ma, C., 1989: The realization of an inertial reference frame from VLBI. This volume. CrossRefGoogle Scholar
McCarthy, , (ed.), 1989: IERS Standards. IERS Technical Note No 3 , Observatoire de Paris.Google Scholar
Melbourne, W., (ed.), 1983: Project MERIT Standards. USNO Circular 167. Google Scholar
Mignard, F., 1989: HIPPARCOS and reference frames. This volume. CrossRefGoogle Scholar
Morrison, L.V., Gibbs, P., Helmer, L., Fabricius, C., Requieme, Y., Rapaport, M., 1989: Proc. IAU Colloquium 100 , Reidel, in press. Google Scholar
Seidelmann, P.K., 1982: IAU 1980 Theory of nutation: the final report of IAU working group on nutation. Celest. Mech. 27, 79.Google Scholar
Wilkins, G.A., and Mueller, I.I., 1986: Joint summary report of the IAU/IUGG Working Groups MERIT and COTES, Bull. Geod. 60, 85.Google Scholar