docs: def catalog(self):
          """
          Read the output catalog produced by the last SExtractor run.
          Output is a list of dictionaries, with a dictionary for
          each star: {'param1': value, 'param2': value, ...}.
          """
  
          output_f = SExtractorfile(self.config['CATALOG_NAME'], 'r')
          c = output_f.read()
          output_f.close()
  
          return c