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WCSTools 3.0: More Tools for Image Astrometry and Catalog Searching
Douglas J. Mink (2001),
presented at the Eleventh Annual Conference on Astronomical Data Analysis
Software and Systems
(ADASS XI)
in Victoria, British Columbia in September 2001
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WCSTools 3.0: More Tools for Image Astrometry and Catalog Searching
Douglas J. Mink
Smithsonian Astrophysical Observatory
For five years, WCSTools as provided image astrometry for astronomers
who need accurate positions for objects they wish to observe. Other
functions have been added and improved since the package was first released.
Support has been added for new catalogs, such as the GSC-ACT, 2MASS Point
Source Catalog, and GSC II, as they have come out. A simple command line
interface can search any supported catalog, returning information in
several standard formats, whether the catalog is on a local disk or
searchable over the World Wide Web. The catalog searching routine
can be located on either end (or both ends!) of such a web connection,
and the output from one catalog search can be used as the input to
another search.
The goal of this project is to have a good set of command line tools for
dealing with images, their headers, source catalogs, and relationships
between them. The FITS WCS standard will be completely supported when
it is agreed upon (multiple world coordinate systems are already
supported), and access to more catalog-serving web sites will be added
in the future.
Source code and online documentation for this library are available at URL
http://tdc-www.harvard.edu/software/wcstools/.
This poster is available online at
http://tdc-www.harvard.edu/software/wcstools/publications/adass2001/.