value unc_up unc_lo author ref method 0.190 0.1100 0.1100 Nugent 2016AJ....152...63N NEATM 0.240 0.0900 0.0900 Nugent 2016AJ....152...63N NEATM 0.245 0.0300 0.0300 Masiero 2012ApJ...759L...8M NEATM 0.420 0.1200 0.1200 Masiero 2014ApJ...791..121M NEATM 0.509 0.0708 0.0708 Masiero 2011ApJ...741...68M NEATM