value unc_up unc_lo author ref method 0.223 0.0280 0.0280 Masiero 2012ApJ...759L...8M NEATM 0.249 0.0351 0.0351 Masiero 2011ApJ...741...68M NEATM 0.280 0.1200 0.1200 Nugent 2016AJ....152...63N NEATM