value unc_up unc_lo author ref method 0.250 0.1000 0.1000 Nugent 2016AJ....152...63N NEATM 0.260 0.0414 0.0414 Masiero 2011ApJ...741...68M NEATM 0.360 0.0400 0.0400 Masiero 2014ApJ...791..121M NEATM 0.362 0.0420 0.0420 Masiero 2011ApJ...741...68M NEATM 0.480 0.0800 0.0800 Masiero 2014ApJ...791..121M NEATM