Header listing for HDU #1: SIMPLE = T / file does conform to FITS standard BITPIX = 16 / number of bits per data pixel NAXIS = 2 / number of data axes NAXIS1 = 3072 / length of data axis 1 NAXIS2 = 2048 / length of data axis 2 EXTEND = T / FITS dataset may contain extensions COMMENT FITS (Flexible Image Transport System) format is defined in 'Astronomy COMMENT and Astrophysics', volume 376, page 359; bibcode: 2001A&A...376..359H BZERO = 32768 / offset data range to that of unsigned short BSCALE = 1 / default scaling factor EXPTIME = 0.2 / exposure time (seconds) DATE-OBS= '2009-11-28T10:36:01' / date of observation (UT) IMAGETYP= 'Light Frame' / image type TARGET = 'Saturn ' / target INSTRUME= 'SBIG STL' / instrument FILTER = ' (3) V (490-580) ' / filter TELESCOP= ' ' / telescope DATE = '2009-11-28T22:17:34' / file creation date (YYYY-MM-DDThh:mm:ss UT) HISTORY Dark subtracted HISTORY Image file saturn_11.fits HISTORY Dark file dark_0p2s_19.fits END Files: saturn_i_13d.fits saturn_v_11d.fits saturn_b_18d.fits saturn_r_16d.fits