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Influence of Systematic Differences of FK4 on Determining Earth Orientation Parameters

Published online by Cambridge University Press:  12 April 2016

Jin Wenjing ,
Xu Tongqi ,
Lu Peizhen  and
Liao Dechun
Jin Wenjing
Affiliation:
Shanghai Observatory 80 Nan Dan Road Shanghai 200030, China
Xu Tongqi
Affiliation:
Shanghai Observatory 80 Nan Dan Road Shanghai 200030, China
Lu Peizhen
Affiliation:
Shanghai Observatory 80 Nan Dan Road Shanghai 200030, China
Liao Dechun
Affiliation:
Shanghai Observatory 80 Nan Dan Road Shanghai 200030, China

Abstract

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In this paper the corrections of positions and proper motions (J2000) of FK4 were obtained. For different kinds of observational methods the formulae of calculating the influence of systematic differences of FK4 on time and latitude determinations were derived. The influence of systematic differences on the universal time and polar coordinates (1980–1988) of Chinese Joint System (CJS) and the global optical solution of earth orientation parameters (1987–1988) were calculated and their external precisions referred to BIH or IERS were also re–estimated.

Type
Part 2. Poster Papers
Information
International Astronomical Union Colloquium , Volume 127: Reference Systems , 1991 , pp. 280 - 283
Copyright
Copyright © United States Naval Observatory 1991

References

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