TELESCOP= 'BURSTCUBE'          / Telescope mission Name
INSTRUME= 'string'             / Instrument Name
DATAMODE= 'CBD     '           / Datamode
OBS_ID  = 'yymmdd'             / Observation ID
DATE-OBS= 'isodate'            / Start Date
DATE-END= 'isodate'            / Stop Date
ORIGIN  = 'GSFC    '           / Origin of the FITS file
DATE    = 'isodate'            / File creation date
CREATOR = 'string'             / Software that create 1st the file
CHECKSUM= 'value   '           / data unit checksum updated date
DATASUM = 'value   '           / HDU checksum updated date