Parametric adjustment of absolute astrometric observations

Details Parametric adjustment of absolute astrometric observations Parametric adjustment of absolute astrometric observations

Mar 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991ap%26ss.177..475g&link_type=abstract

Astrophysics and Space Science (ISSN 0004-640X), vol. 177, no. 1-2, March 1991, p. 475-481.

Astronomy and Astrophysics

Astrophysics

1

Adjusting, Astrometry, Least Squares Method, Parameter Identification, Astronomical Catalogs, Covariance, Error Analysis, Instrument Errors, Instrument Orientation, Mathematical Models

Scientific paper

A least-squares parametric method which is well-known in geodesy is suggested to be used for adjustment of the absolute astrometric observations. This method most completely uses all results of the observations, their mutual covariances, and a priori data about an accuracy of the initial catalog. The method ensures the most precise estimates of unknown parameters and has an objective criterion for their reliability. The application of this method in case of traditional chain programs of optical observations was considered in details. It is recommended that the covariance matrix of the FK4 systematic errors parameters would be calculated and published in the compilation of the FK5.

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