typedef struct {
  char fileroot[20]; # Root of file name, without any ".fit" suffix
  char keyword[9]; # Keyword name
  char value[80]; # Keyword value (as a string)
} OPHDRFIX;


OPHDRFIX sdR-??-00041534 QUALITY 'test'
OPHDRFIX sdR-??-00041535 QUALITY 'test'
OPHDRFIX sdR-??-00041535 QUALITY 'test'
OPHDRFIX sdR-??-00041535 QUALITY 'test'
OPHDRFIX sdR-??-00041550 QUALITY 'bad'
OPHDRFIX sdR-??-00041551 QUALITY 'bad'
OPHDRFIX sdR-??-00041550 QUALITY 'excellent'
OPHDRFIX sdR-??-00041551 QUALITY 'excellent'
OPHDRFIX sdR-??-00041567 QUALITY 'bad'
OPHDRFIX sdR-??-00041567 QUALITY 'bad'