A homogeneous UT1-UTC series of Chinese Joint System from 1962 to 1988.

Details A homogeneous UT1-UTC series of Chinese Joint System from 1962 to 1988. A homogeneous UT1-UTC series of Chinese Joint System from 1962 to 1988.

Dec 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993acasn..34..397l&link_type=abstract

Acta Astron. Sin., Vol. 34, No. 4, p. 397 - 404

Astronomy and Astrophysics

Astronomy

Scientific paper

The Chinese Joint universal time System (CJS) was established in 1959. During past 30 years, different systems of astronomical constants and star catalogues were used in reduction of UT1-UTC series of the CJS. Caused by the systematic difference FK5-FK4 in star positions and proper motions, the change of the nutation model from Woolard's to Wahr's series (both for 1962 - 1988) and of the aberration constant K from 20″47 to 20″496 (for 1962 - 1972), three kinds of corrections for the influence on UT1-UTC of the CJS were calculated. Comparison is made between the homogeneous series of UT1-UTC of the CJS (based on both FK4 and FK5 systems) and UT1-UTC series of ERP (BIH) 87C02.

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