value unc_up unc_lo author ref method 0.190 0.1000 0.1000 Nugent 2016AJ....152...63N NEATM 0.234 0.0214 0.0214 Masiero 2011ApJ...741...68M NEATM 0.260 0.0500 0.0500 Masiero 2014ApJ...791..121M NEATM