value unc_up unc_lo author ref method 3.25 0.700 0.700 Nugent 2016AJ....152...63N NEATM 3.63 0.650 0.650 Nugent 2016AJ....152...63N NEATM 3.68 0.231 0.231 Masiero 2011ApJ...741...68M NEATM