value unc_up unc_lo author ref method 0.185 0.0363 0.0363 Masiero 2011ApJ...741...68M NEATM 0.208 0.0240 0.0240 Masiero 2012ApJ...759L...8M NEATM 0.220 0.1100 0.1100 Nugent 2016AJ....152...63N NEATM 0.240 0.0500 0.0500 Masiero 2014ApJ...791..121M NEATM