NAME:
  garth
 PURPOSE:
  Visual inspector of moving target triplet detections.
 DESCRIPTION:

  First, some vocabulary:

  Object - Putative detection of a moving source.  Consists of three positions
              measured from three images taken at different times.

  Field  - A single location in the sky that has been imaged at three
              different times.  Each field has a name and three files names
              for the three images.  Each field also has an assocated list
              of objects.

  Triplet List - This is a list of fields, ie., a list of field names and
                    the file names for the images.

  To begin processing the object list(s), there must be a triplet list file.
  These files end with a .match suffix.  For every entry in the .match file
  there must be an object list file.  These are named FLDNAM.obj where FLDNAM
  is the name of the field found in the first column of the .match file.
   ex:
        field_1  980115.001 980115.051 980115.101
        field_2  980115.002 980115.052 980115.102

  could be two list from a .match file, perhaps named 980115.match.  There
  would then be two related files, field_1.obj and field_2.obj that would
  have the object list.  The object list files are created by the program
  LINKOBJ and are not intended to be directly edited (though with care, this
  is possible).

 CATEGORY:
  Widgets
 CALLING SEQUENCE:
  garth
 INPUTS:

 OPTIONAL INPUT PARAMETERS:

 KEYWORD INPUT PARAMETERS:
    KEYLIST=      : Name of a file containing a correspondence list. This list
                    associates a set of standard names with the actual keyword
                    names found in a FITS file header. If this keyword is
                    omitted, a default list is used, as if a file with the
                    following contents had been supplied:
                     AIRMASS   K  AIRMASS
                     DATE      K  DATE-OBS
                     DATETMPL  T  DD-MM-YYYY
                     EXPDELTA  V  0.0
                     EXPTIME   K  EXPTIME
                     FILTER    K  FILTERS
                     FILENAME  K  CCDFNAME
                     OBJECT    K  OBJECT
                     UT        K  UT 
                    The middle column is a flag. It may be K, for Keyword,
                    T, for Template, or V, for Value. If it is V, the contents
                    of the third field on that line should make sense for the
                    name in the first field.

  PATH      - Optional path for original image directory.
                If not specified, the current directory is used.

  SUBSIZE   - Size of the sub-images to show (default = 249 pixels)

 OUTPUTS:

 KEYWORD OUTPUT PARAMETERS:

 COMMON BLOCKS:

 SIDE EFFECTS:

 RESTRICTIONS:
  This widget tool must be run on a 24-bit color display.

 PROCEDURE: