value unc_up unc_lo author ref method 0.219 0.0386 0.0386 Masiero 2011ApJ...741...68M NEATM 0.260 0.0400 0.0400 Masiero 2014ApJ...791..121M NEATM 0.330 0.1500 0.1500 Nugent 2016AJ....152...63N NEATM