value unc_up unc_lo author ref method 0.254 0.0371 0.0371 Masiero 2011ApJ...741...68M NEATM 0.300 0.1200 0.1200 Nugent 2016AJ....152...63N NEATM 0.315 0.0450 0.0450 Masiero 2012ApJ...759L...8M NEATM