value unc_up unc_lo author ref method 0.100 0.0500 0.0500 Nugent 2016AJ....152...63N NEATM 0.100 0.0800 0.0800 Nugent 2016AJ....152...63N NEATM 0.149 0.0180 0.0180 Masiero 2011ApJ...741...68M NEATM