value unc_up unc_lo author ref method 0.250 0.0370 0.0370 Masiero 2012ApJ...759L...8M NEATM 0.250 0.1200 0.1200 Nugent 2016AJ....152...63N NEATM 0.280 0.1000 0.1000 Nugent 2016AJ....152...63N NEATM