This is a sample FITS header for an image stored in a FITS primary array.
SIMPLE = T / file does conform to FITS standard BITPIX = 32 / number of bits per data pixel NAXIS = 2 / number of data axes NAXIS1 = 300 / length of data axis 1 NAXIS2 = 200 / length of data axis 2 CTYPE1 = 'RA---TAN' / TAN projection used CRPIX1 = 150 / reference pixel CRVAL1 = 45.83 / RA at the reference pixel CDELT1 = -.00277777 / increment per pixel (degrees) CUNIT1 = 'deg ' / physical units of axis 1 CTYPE2 = 'DEC--TAN' / TAN projection used CRPIX2 = 100 / reference pixel CRVAL2 = 63.57 / DEC at the reference pixel CDELT2 = .00277777 / increment per pixel (degrees) CUNIT2 = 'deg ' / physical units of axis 2 CROTA2 = 30.0 / image rotation (degrees) PC001001= .866025403 / Coord. Descrp. Matrix: cos(CROTA2) PC002002= -.5 / Coord. Descrp. Matrix: -sin(CROTA2) PC001002= .5 / Coord. Descrp. Matrix: sin(CROTA2) PC002001= .866025403 / Coord. Descrp. Matrix: cos(CROTA2) EQUINOX = 2000.0 / coordinate epoch MJD-OBS = 44258.7845612 / MJD of the observation END