T_FIND

       Driver procedure (for FIND) to locate stars in an image.

       Finds positive brightness perturbations (i.e stars) in a
       2 dimensional image.  Output is to a FITS ASCII table.

       T_FIND, image, im_hdr, [ fitsfile, hmin, fwhm, sharplim, roundlim,
                                       PRINT = , /SILENT ]

       image - 2 dimensional image array (integer or real) for which one
               wishes to identify the stars present
       im_hdr - FITS header associated with image array

       T_FIND will prompt for these parameters if not supplied
       fitsfile - scalar string specifying the name of the output FITS ASCII
               table file
       fwhm - FWHM to be used in the convolving filter
       hmin - Threshold intensity for a point source - should generally
               be 3 or 4 sigma above background level
       sharplim - 2 element vector giving low and high Limit for
               sharpness statistic (Default: [0.2,1.0] )
       roundlim - 2 element vector giving low and high Limit for
               roundness statistic (Default: [-1.0,1.0] )

       /PRINT - if set and non-zero then NSTAR will also write its results to
               a file find.prt.   One can specify the output file name by
               setting PRINT = 'filename'.
       /SILENT -   If this keyword is set and non-zero, then FIND will work
               silently, and not display each star found

       None

       CHECK_FITS, FDECOMP, FIND, FTADDCOL, FTCREATE, SXADDHIST, SXADDPAR,
       SXDELPAR, SXPAR(), WRITEFITS

       Written W. Landsman, STX  May, 1988
       Added phpadu, J. Hill, STX, October, 1990
       New calling syntax output to disk FITS table, W. Landsman    May 1996
       Work with more than 32767 stars  W. Landsman August 1997
       Converted to IDL V5.0   W. Landsman   September 1997
       Remove obsolete !ERR system variable   W. Landsman   May 2000

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