value unc_up unc_lo author ref method 0.146 0.0170 0.0170 Masiero 2012ApJ...759L...8M NEATM 0.150 0.1000 0.1000 Nugent 2016AJ....152...63N NEATM 0.456 0.0660 0.0660 Masiero 2011ApJ...741...68M NEATM