github.com/astrogo/cfitsio@v0.1.0/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