| USAGE | 
                  apertures         -o
   observset  -b binning  | 
                ||
| INPUT | 
                  observset.obsdef   is the applicable
   observation definition file binning is the binning of the ccd dat  | 
                ||
| OUTPUT | 
                  observset.xy   
   aperture data file | 
                ||
| PARAMETERS | 
                                                       
                                       
      
  |