Most of the keywords have been deleted to make the example shorter.
SIMPLE = T / file does conform to FITS standard BITPIX = 8 / bits per pixel NAXIS = 0 / number of data axes EXTEND = T / FITS dataset may contain extensions COMMENT FITS (Flexible Image Transport System) format defined in Astronomy and COMMENT Astrophysics Supplement Series v44/p363, v44/p371, v73/p359, v73/p365. COMMENT Contact the NASA Science Office of Standards and Technology for the COMMENT FITS Definition document #100 and other FITS information. CHILDREN= 3 / Number of children for this HDU CHILD1 = 'DATA_ARRAY' / Name of child extension CHILD2 = 'MORE ' / Name of child extension CHILD3 = 'HISTORY ' / Name of child extension CREATOR = 'WRITE1 V1.0' / Creator of this file END XTENSION= 'IMAGE ' / IMAGE extension BITPIX = -32 / bits per pixel NAXIS = 2 / number of data axes NAXIS1 = 2 / length of data axis 1 NAXIS2 = 3 / length of data axis 2 PCOUNT = 0 / number of random group parameters GCOUNT = 1 / number of random groups EXTNAME = 'DATA_ARRAY' / Extension contains DATA_ARRAY structure TYPE = 'REAL ' / Data type of this extension PARENT = 'PRIMARY ' / Parent HDU of this extension CHILDREN= 0 / Number of children for this HDU END XTENSION= 'IMAGE ' / IMAGE extension ... EXTNAME = 'MORE ' / Extension contains MORE structure TYPE = 'EXT ' / Data type of this extension PARENT = 'PRIMARY ' / Parent HDU of this extension CHILDREN= 1 / Number of children for this HDU CHILD1 = 'ASTERIX ' / Name of child extension END XTENSION= 'IMAGE ' / IMAGE extension ... EXTNAME = 'ASTERIX ' / Extension contains ASTERIX structure TYPE = 'EXT ' / Data type of this extension PARENT = 'MORE ' / Parent HDU of this extension CHILDREN= 0 / Number of children for this HDU END XTENSION= 'IMAGE ' / IMAGE extension ... EXTNAME = 'HISTORY ' / Contains ASTERIX HISTORY structure TYPE = 'HISTORY ' / Data type of this extension CREATED = '12-Feb-98 14:37:17' / Date & time of HISTORY creation UPDATE = 'NORMAL ' / Update mode for further additions PARENT = 'PRIMARY ' / Parent HDU of this extension CHILDREN= 1 / Number of children for this HDU CHILD1 = 'RECORD1 ' / Name of child extension END XTENSION= 'IMAGE ' / IMAGE extension ... EXTNAME = 'RECORD1 ' / Contains ASTERIX HIST_REC structure TYPE = 'HIST_REC' / Data type of this extension HOST = 'xund ' / Machine application was run from DATE = '12-Feb-98 14:37:17' / Date & time application was started COMM = 'WRITE1 V1.0' / Version of application being run TEXT_REC= 0 / Current text line number PARENT = 'HISTORY ' / Parent HDU of this extension CHILDREN= 0 / Number of children for this HDU END