value unc_up unc_lo author ref method 3.97 1.380 1.380 Nugent 2016AJ....152...63N NEATM 4.23 1.020 1.020 Nugent 2016AJ....152...63N NEATM 4.61 0.086 0.086 Masiero 2011ApJ...741...68M NEATM 5.86 0.200 0.200 Masiero 2011ApJ...741...68M NEATM