value unc_up unc_lo author ref method 0.195 0.0430 0.0430 Masiero 2012ApJ...759L...8M NEATM 0.208 0.0295 0.0295 Masiero 2011ApJ...741...68M NEATM 0.250 0.1100 0.1100 Nugent 2016AJ....152...63N NEATM