value unc_up unc_lo author ref method 6.70 1.593 1.593 Masiero 2017AJ....154..168M NEATM 8.18 2.410 2.410 Nugent 2016AJ....152...63N NEATM 8.91 0.125 0.125 Masiero 2011ApJ...741...68M NEATM