value unc_up unc_lo author ref method 6.99 0.250 0.250 Masiero 2014ApJ...791..121M NEATM 7.84 0.089 0.089 Masiero 2011ApJ...741...68M NEATM 8.03 1.890 1.890 Nugent 2016AJ....152...63N NEATM 8.27 0.210 0.210 Masiero 2012ApJ...759L...8M NEATM 8.63 2.370 2.370 Nugent 2016AJ....152...63N NEATM