github.com/astrogo/fitsio@v0.3.0/testdata/ref.file001.hdu

SIMPLE  =                    T / STANDARD FITS FORMAT (REV OCT 1981)            BITPIX  =                    8 / CHARACTER INFORMATION                          NAXIS   =                    0 / NO IMAGE DATA ARRAY PRESENT                    EXTEND  =                    T / THERE IS AN EXTENSION                          ORIGIN  = 'ESO     '           / EUROPEAN SOUTHERN OBSERVATORY                  OBJECT  = 'SNG - CAT.'         / THE IDENTIFIER                                 DATE    = '27/ 5/84'           / DATE THIS TAPE WRITTEN DD/MM/YY                END