value unc_up unc_lo author ref method 0.176 0.0349 0.0349 Masiero 2011ApJ...741...68M NEATM 0.180 0.0700 0.0700 Nugent 2016AJ....152...63N NEATM 0.291 0.0470 0.0470 Masiero 2012ApJ...759L...8M NEATM