value unc_up unc_lo author ref method 0.250 0.0800 0.0800 Nugent 2016AJ....152...63N NEATM 0.294 0.0445 0.0445 Masiero 2011ApJ...741...68M NEATM 0.300 0.0937 0.0937 Masiero 2011ApJ...741...68M NEATM