craftutils.observation.epoch.ImagingEpoch.frame_class.astrometry_diagnostics(reference_cat: ~typing.Union[str, ~astropy.table.table.QTable], ra_col: str = 'ra', dec_col: str = 'dec', mag_col: str = 'phot_g_mean_mag', offset_tolerance: ~astropy.units.quantity.Quantity = <Quantity 0.5 arcsec>, local_coord: ~typing.Optional[~astropy.coordinates.sky_coordinate.SkyCoord] = None, local_radius: ~astropy.units.quantity.Quantity = <Quantity 0.5 arcmin>, show_plots: bool = False, output_path: ~typing.Optional[str] = None, min_matches: int = 10, ext: int = 0)

Perform diagnostics of astrometric offset of stars in image from catalogue. :param reference_cat: Path to reference catalogue. :param ra_col: :param dec_col: :param mag_col: :param offset_tolerance: Maximum offset to be matched. :param star_tolerance: Maximum CLASS_FLAG for object to be considered. :param local_coord: :param local_radius: :param show_plots: :param output_path: :return: