value unc_up unc_lo author ref method 12.82 3.380 3.380 Nugent 2016AJ....152...63N NEATM 14.33 3.820 3.820 Nugent 2016AJ....152...63N NEATM 16.21 0.590 0.590 Masiero 2012ApJ...759L...8M NEATM 19.55 0.084 0.084 Masiero 2011ApJ...741...68M NEATM 20.84 0.240 0.240 Masiero 2014ApJ...791..121M NEATM