value unc_up unc_lo author ref method 7.62 0.090 0.090 Masiero 2014ApJ...791..121M NEATM 8.17 0.054 0.054 Masiero 2011ApJ...741...68M NEATM 9.01 2.290 2.290 Nugent 2016AJ....152...63N NEATM 9.72 0.180 0.180 Masiero 2012ApJ...759L...8M NEATM