def METHOD_NAME(cls, hdulist):
    """
    This method parses a NoRH `astropy.io.fits.HDUList`.
    Parameters
    ----------
    hdulist : `astropy.io.fits.HDUList`
        A HDU list.
    """
    header = MetaDict(OrderedDict(hdulist[0].header))
    # For these NoRH files, the time series data is recorded in the primary
    # HDU
    data = hdulist[0].data
    # No explicit time array in FITS file, so construct the time array from
    # the FITS header
    obs_start_time = parse_time(header['DATE-OBS'] + 'T' + header['CRVAL1'])
    length = len(data)
    cadence = float(header['CDELT1'])
    sec_array = np.linspace(0, length - 1, int(length / cadence))
    norh_time = obs_start_time + TimeDelta(sec_array*u.second)
    norh_time.precision = 9
    norh_time = norh_time.isot.astype('datetime64')
    # Add the units data
    units = OrderedDict([('Correlation Coefficient', u.dimensionless_unscaled)])
    # Todo: check units used.
    return pandas.DataFrame(
        data, index=norh_time, columns=('Correlation Coefficient', )), header, units