value unc_up unc_lo author ref method 0.182 0.0247 0.0247 Masiero 2011ApJ...741...68M NEATM 0.221 0.0249 0.0249 Masiero 2011ApJ...741...68M NEATM 0.270 0.1000 0.1000 Nugent 2016AJ....152...63N NEATM