value unc_up unc_lo author ref method 10.05 0.460 0.460 Masiero 2014ApJ...791..121M NEATM 12.45 0.046 0.046 Masiero 2011ApJ...741...68M NEATM 9.84 2.060 2.060 Nugent 2016AJ....152...63N NEATM