value unc_up unc_lo author ref method 5.83 1.220 1.220 Nugent 2016AJ....152...63N NEATM 6.50 0.390 0.390 Masiero 2014ApJ...791..121M NEATM 6.81 0.036 0.036 Masiero 2011ApJ...741...68M NEATM