value unc_up unc_lo author ref method 4.77 0.280 0.280 Masiero 2014ApJ...791..121M NEATM 4.88 0.840 0.840 Nugent 2016AJ....152...63N NEATM 5.46 0.029 0.029 Masiero 2011ApJ...741...68M NEATM