value unc_up unc_lo author ref method 0.202 0.0260 0.0260 Masiero 2012ApJ...759L...8M NEATM 0.240 0.1200 0.1200 Nugent 2016AJ....152...63N NEATM 0.360 0.0454 0.0454 Masiero 2011ApJ...741...68M NEATM