NAME:
  scindex
 PURPOSE:   (one line only)
  Build an index into the data produced from one night and site of QHY data
 DESCRIPTION:
 CATEGORY:
  Occultations
 CALLING SEQUENCE:
  scindex,date
 INPUTS:
  date - string with the date of observations to scan (YYYY-MM-DD)
 OPTIONAL INPUT PARAMETERS:
 KEYWORD INPUT PARAMETERS:
  DDIR - optional directory to look for date in, default is the current
           directory
  SILENT - Flag, if set will suppress all non-error output.
 OUTPUTS:
  info - anonymous structure with the information pulled from the directory
           nobs is always defined but if zero, none of other other tags are.
 KEYWORD OUTPUT PARAMETERS:
 CONFIGURATION:
 COMMON BLOCKS:
 SIDE EFFECTS:
 RESTRICTIONS:
 PROCEDURE:
 MODIFICATION HISTORY:
  Written by Marc W. Buie, Southwest Research Institute, 2021/02/02
  2021/11/09, MWB, added last file number to the TOC and cleaned up the
                   the TOC header