value unc_up unc_lo author ref method 5.13 0.040 0.040 Masiero 2014ApJ...791..121M NEATM 6.25 0.031 0.031 Masiero 2011ApJ...741...68M NEATM 6.59 0.130 0.130 Masiero 2014ApJ...791..121M NEATM 6.70 1.750 1.750 Nugent 2016AJ....152...63N NEATM