value unc_up unc_lo author ref method 12.00 0.086 0.086 Masiero 2011ApJ...741...68M NEATM 12.18 4.260 4.260 Nugent 2016AJ....152...63N NEATM 12.39 0.153 0.153 Masiero 2011ApJ...741...68M NEATM