value unc_up unc_lo author ref method 0.234 0.0194 0.0194 Masiero 2011ApJ...741...68M NEATM 0.240 0.0200 0.0200 Masiero 2014ApJ...791..121M NEATM 0.350 0.1900 0.1900 Nugent 2016AJ....152...63N NEATM 0.446 0.0430 0.0430 Masiero 2012ApJ...759L...8M NEATM