SIMPLE  =                    T / conforms to FITS standard                      BITPIX  =                    8 / array data type                                NAXIS   =                    0 / number of array dimensions                     EXTEND  =                    T                                                  GROUPS  =                    T / has groups                                     PCOUNT  =                    0 / number of parameters                           GCOUNT  =                    1 / number of groups                               END