value unc_up unc_lo author ref method 6.96 0.090 0.090 Masiero 2014ApJ...791..121M NEATM 7.54 0.089 0.089 Masiero 2011ApJ...741...68M NEATM 7.79 1.490 1.490 Nugent 2016AJ....152...63N NEATM 9.02 0.330 0.330 Masiero 2012ApJ...759L...8M NEATM