docs: def table(self):
          """
          The astropy.table.Table object that will contain the data result
          @rtype: Table
          @return: data table
          """
          if self._table is None:
              column_names = []
              for fileid in self.header.file_ids:
                  for column_name in self.header.column_names:
                      column_names.append("{}_{}".format(column_name, fileid))
                  column_names.append("ZP_{}".format(fileid))
              if len(column_names) > 0:
                  self._table = Table(names=column_names)
              else:
                  self._table = Table()
          return self._table