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.TH imgsc 1 WCSTools "14 April 1998"
.SH Name
imgsc \- Find HST GSC stars in FITS or IRAF image files
.SH Synopsis
imgsc [options] FITS or IRAF file(s)
.SH Description
Search the HST Guide Star Catalog within the area described by the world
coordinate system in an image header. This is a link to imcat rather than
a separate executable.
.SH Options
.TP
.B \-b [<RA> <Dec>]
Output in B1950, optional new image center in B1950 (FK4) RA and Dec
.TP
.B \-c <name>
Reference catalog (gsc, ujc, or tab table file
.TP
.B \-g <class>
Guide Star Catalog class (\-1=all,0,3 (default \-1)
.TP
.B \-h
Print heading, else do not
.TP
.B \-j [<RA> <Dec>]
Output in J2000, optional new image center in J2000 (FK5) RA and Dec
.TP
.B \-m [<bright magnitude>] <faint magnitude>
Limiting catalog magnitude(s) (default none, bright -2 if only faint is given)
.TP
.B \-n <num>
Number of brightest stars to print
.TP
.B \-p <scale>
Initial plate scale in arcsec per pixel (default 0)
.TP
.B \-s
Sort by RA instead of flux
.TP
.B \-t
Tab table to standard output as well as file
.TP
.B \-v
Verbose listing of processing intermediate results
.TP
.B \-w
Write tab table output file imagename.cat
.B \-z
Use AIPS classic projections instead of WCSLIB; use CD matrix or CDELT
instead of polynomial solution.
.SH See Also
imcat(),imuac(),imusac(),scat()
.SH Author
Jessica Mink, SAO (jmink@cfa.harvard.edu)
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