value unc_up unc_lo author ref method 0.249 0.0509 0.0509 Masiero 2011ApJ...741...68M NEATM 0.253 0.0539 0.0539 Masiero 2011ApJ...741...68M NEATM 0.280 0.1500 0.1500 Nugent 2016AJ....152...63N NEATM