--- header unit 0: primary ---
SIMPLE = T / file does conform to FITS standard
BITPIX = 8 / number of bits per data pixel
NAXIS = 2 / number of data axes
NAXIS1 = 3600 / length of data axis 1
NAXIS2 = 200 / length of data axis 2
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.
DATE = '2026-08-17' / Time of observation
CONTENT = '2026/08/17  Radio flux density, e-CALLISTO (GLASGOW)' / Title of imag
ORIGIN = 'UK' / Organization name
TELESCOP = 'Radio Spectrometer' / Type of instrument
INSTRUME = 'GLASGOW' / Name of the spectrometer
OBJECT = 'Sun' / object description
DATE-OBS = '2026/08/17' / Date observation starts
TIME-OBS = '06:00:00.715' / Time observation starts
DATE-END = '2026/08/17' / date observation ends
TIME-END = '06:15:00' / time observation ends
BZERO = 0. / scaling offset
BSCALE = 1. / scaling factor
BUNIT = 'digits' / z-axis title
DATAMIN = 0 / minimum element in image
DATAMAX = 254 / maximum element in image
CRVAL1 = 21600. / value on axis 1 at reference pixel [sec of day]
CRPIX1 = 0 / reference pixel of axis 1
CTYPE1 = 'Time [UT]' / title of axis 1
CDELT1 = 0.25 / step between first and second element in x-axis
CRVAL2 = 200. / value on axis 2 at the reference pixel
CRPIX2 = 0 / reference pixel of axis 2
CTYPE2 = 'Frequency [MHz]' / title of axis 2
CDELT2 = -1. / step between first and second element in axis
OBS_LAT = 55.9000015258789 / observatory latitude in degree
OBS_LAC = 'N' / observatory latitude code {N,S}
OBS_LON = 4.30000019073486 / observatory longitude in degree
OBS_LOC = 'W' / observatory longitude code {E,W}
OBS_ALT = 50. / observatory altitude in meter asl
FRQFILE = 'FRQ4580.CFG' / name of frequency file
PWM_VAL = 90 / PWM value to control tuner gain
--- header unit 1: binary table ---
XTENSION = 'BINTABLE' / binary table extension
BITPIX = 8 / 8-bit bytes
NAXIS = 2 / 2-dimensional binary table
NAXIS1 = 30400 / width of table in bytes
NAXIS2 = 1 / number of rows in table
PCOUNT = 0 / size of special data area
GCOUNT = 1 / one data group (required keyword)
TFIELDS = 2 / number of fields in each row
TTYPE1 = 'TIME' / label for field 1
TFORM1 = '3600D8.3' / data format of field: 8-byte DOUBLE
TTYPE2 = 'FREQUENCY' / label for field 2
TFORM2 = '200D8.3' / data format of field: 8-byte DOUBLE
TSCAL1 = 1.
TZERO1 = 0.
TSCAL2 = 1.
TZERO2 = 0.