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| Paper: |
WCSTools: Catalogs, Headers, and FITS Files, Oh My! |
| Volume: |
485, Astronomical Data Analysis Software and Systems XXIII |
| Page: |
231 |
| Authors: |
Mink, J. |
| Abstract: |
WCSTools is a package of tasks written in very portable C, the main
purpose of which is to assign world coordinate systems to images of
astronomical fields. These tools, which access source and
manipulate image headers, compute transformations between pixels and
spatial coordinates, and convert times, use a self-contained library of
subroutines which have been combined into command-line
executable tasks. Separate use of the various catalog searching tasks
as well as the variety of ways in which the header and file reading and
writing tasks can aid astronomical work will be discussed. Access to
the USNO UCAC3 and UCAC4 catalogs as well as implementation of the IRAF
ZPX polynomial projection and the SCAMP image distortion model will be
described, as will other major fixes and upgrades, ending with brief
note as to the advantages and disadvantages of distributing
understandable, open source code. |
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