Determination of the principal term of nutation from improved BIH astrometric data

Details Determination of the principal term of nutation from improved BIH astrometric data Determination of the principal term of nutation from improved BIH astrometric data

Aug 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988a%26a...202..306c&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 202, no. 1-2, Aug. 1988, p. 306-308.

Astronomy and Astrophysics

Astrophysics

6

Astrometry, Earth Rotation, Nutation, Planet Ephemerides, Amplitudes, Constants, Errors, Very Long Base Interferometry

Scientific paper

New series of the common latitude term z as obtained by Li (1985) from an improved reduction, referred to the IAU - 1976 System of Astronomical Constants and to the IAU - 1980 theory of nutation, of the BIH astrometric data at five-day intervals from 1962 to 1982 are used for deriving the coefficients of the principal term of nutation. The derived coefficients are in good agreement with similar previous astrometric determinations (Feissel and Guinot, 1981; Capitaine and Xiao, 1982) with improved formal errors, which are, in the present work, of the order of 0arcsec.001.

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