Analysis of Systematic Differences of Astrometric Catalogs in a Band

Details Analysis of Systematic Differences of Astrometric Catalogs in a Band Analysis of Systematic Differences of Astrometric Catalogs in a Band

Jan 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004aj....127..549m&link_type=abstract

The Astronomical Journal, Volume 127, Issue 1, pp. 549-559.

Astronomy and Astrophysics

Astronomy

Astrometry, Catalogs, Reference Systems

Scientific paper

We first establish theoretical arguments that give consistency to a method of homogenization for astrometric catalogs that may be applied to domains other than the usual complete sphere. The work domain consists of bands having a constant width and containing a great circle. The proposed adjustment requires prescribed values on these band boundaries that are subject to uncertainties, so it is desirable that the adjustment depend as little as possible on these uncertainties. We then solve this problem in the case of a band containing any great circle, for which it is necessary to determine a new functional basis in order to expand the systematic differences in spherical coordinates.

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