value unc_up unc_lo author ref method 3.50 0.864 0.864 Masiero 2011ApJ...741...68M NEATM 3.86 1.250 1.250 Masiero 2011ApJ...741...68M NEATM 4.57 1.020 1.020 Nugent 2016AJ....152...63N NEATM