- NAME
T_GROUP
- PURPOSE
Driver procedure (for GROUP) to place stars in non-overlapping groups.
- EXPLANATION
This procedure is part of the DAOPHOT sequence that places star
positions with non-overlapping PSFs into distinct groups
Input and output are to FITS ASCII tables
- CALLING SEQUENCE
T_GROUP, fitsfile, [ rmax, XPAR = , YPAR = , NEWTABLE = ]
- INPUTS
FITSFILE - Name of disk FITS ASCII table containing the X,Y positions
in FITS (FORTRAN) convention (first pixel is 1,1)
- OPTIONAL INPUTS
rmax - maximum allowable distance between stars in a single group
- OPTIONAL INPUT KEYWORDS
XPAR, YPAR - scalar strings giving the field name in the output table
containing the X and Y coordinates. If not supplied,
then the fields 'X' and 'Y' are read.
NEWTABLE - scalar giving name of output disk FITS ASCII table. If not
supplied,
- PROCEDURES
FTADDCOL, FTGET(), FTINFO, FTPUT, GROUP, READFITS(), SXADDHIST,
SXADDHIST, WRITEFITS
- REVISION HISTORY
Written, W. Landsman STX Co. May, 1996
Converted to IDL V5.0 W. Landsman September 1997
pdated for new FTINFO call W. Landsman May 2000