value unc_up unc_lo author ref method 0.176 0.0342 0.0342 Masiero 2011ApJ...741...68M NEATM 0.220 0.1200 0.1200 Nugent 2016AJ....152...63N NEATM 0.282 0.0490 0.0490 Masiero 2012ApJ...759L...8M NEATM