value unc_up unc_lo author ref method 18.46 0.350 0.350 Masiero 2014ApJ...791..121M NEATM 18.72 0.212 0.212 Masiero 2011ApJ...741...68M NEATM 22.43 5.640 5.640 Nugent 2016AJ....152...63N NEATM 22.67 5.950 5.950 Nugent 2016AJ....152...63N NEATM 24.13 0.480 0.480 Masiero 2012ApJ...759L...8M NEATM