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Title:
Schmidt plate astrometry - Subplate overlap
Authors:
Taff, L. G.
Affiliation:
AA(Space Telescope Science Institute, Baltimore, MD)
Publication:
Astronomical Journal (ISSN 0004-6256), vol. 98, Nov. 1989, p. 1912-1917. (AJ Homepage)
Publication Date:
11/1989
Category:
Astronomy
Origin:
STI
NASA/STI Keywords:
ASTROMETRY, ASTRONOMICAL CATALOGS, PHOTOGRAPHIC PLATES, SCHMIDT CAMERAS, STELLAR MOTIONS, HUBBLE SPACE TELESCOPE, MATHEMATICAL MODELS
DOI:
10.1086/115268
Bibliographic Code:
1989AJ.....98.1912T

Abstract

An expansion of the plate-overlap method of astrometric data reduction to a single plate is proposed. Each plate is (artificially) divided into subplates which then can be overlapped. This reduces the area of a plate over which a plate model needs to accurately represent the relationship between measured coordinates and ideal coordinates. Application is made to nonastrographic plates such as Schmidt plates, and in particular, to the Hubble Space Telescope Guide Star Catalog.

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