value unc_up unc_lo author ref method 0.046 0.0180 0.0180 Masiero 2012ApJ...759L...8M NEATM 0.060 0.1000 0.1000 Nugent 2016AJ....152...63N NEATM 0.080 0.0447 0.0447 Masiero 2017AJ....154..168M NEATM