value unc_up unc_lo author ref method 14.17 0.098 0.098 Masiero 2011ApJ...741...68M NEATM 16.68 0.410 0.410 Masiero 2012ApJ...759L...8M NEATM 17.20 4.500 4.500 Nugent 2016AJ....152...63N NEATM