--- header unit 0: primary ---
SIMPLE = T / STANDARD FITS DATA
BITPIX = 8 / BITS / PIXEL
NAXIS = 2 / NUMBER OF AXES
NAXIS1 = 620 / NUMBER OF PIXELS IN X-DIRECTION
NAXIS2 = 570 / NUMBER OF PIXELS IN Y-DIRECTION
GAIN = 45 / GAIN OF A/D CONVERTER
OFFSET = 1 / OFFSET OF A/D CONVERTER
DATE = '24JUN2003' / DATE OF IMAGE ACQUISITION
TIME = '07:35:38' / TIME OF IMAGE ACQUISITION