def create_mosaic_pars(mosaic_wcs):
    """Return dict of values to use with AstroDrizzle to specify output mosaic

    Parameters
    -----------
    mosaic_wcs : object
        WCS as generated by make_mosaic_wcs

    Returns
    --------
    mosaic_pars : dict
        This dictionary can be used as input to astrodrizzle.AstroDrizzle with
        the syntax 'AstroDrizzle(filenames, **mosaic_pars)'

    """
    mosaic_pars = dict(
        driz_sep_rot=mosaic_wcs.orientat,
        driz_sep_scale=mosaic_wcs.pscale,
        driz_sep_outnx=mosaic_wcs.array_shape[1],
        driz_sep_outny=mosaic_wcs.array_shape[0],
        driz_sep_ra=mosaic_wcs.wcs.crval[0],
        driz_sep_dec=mosaic_wcs.wcs.crval[1],
        driz_sep_crpix1=mosaic_wcs.wcs.crpix[0],
        driz_sep_crpix2=mosaic_wcs.wcs.crpix[1],
        final_rot=mosaic_wcs.orientat,
        final_scale=mosaic_wcs.pscale,
        final_outnx=mosaic_wcs.array_shape[1],
        final_outny=mosaic_wcs.array_shape[0],
        final_ra=mosaic_wcs.wcs.crval[0],
        final_dec=mosaic_wcs.wcs.crval[1],
        final_crpix1=mosaic_wcs.wcs.crpix[0],
        final_crpix2=mosaic_wcs.wcs.crpix[1]
        )
    return mosaic_pars