value unc_up unc_lo author ref method 0.278 0.0145 0.0145 Masiero 2011ApJ...741...68M NEATM 0.308 0.0382 0.0382 Masiero 2011ApJ...741...68M NEATM 0.330 0.0300 0.0300 Masiero 2014ApJ...791..121M NEATM 0.370 0.1600 0.1600 Nugent 2016AJ....152...63N NEATM