value unc_up unc_lo author ref method 4.03 0.900 0.900 Nugent 2016AJ....152...63N NEATM 4.40 1.180 1.180 Nugent 2016AJ....152...63N NEATM 5.19 0.281 0.281 Masiero 2011ApJ...741...68M NEATM 6.12 2.160 2.160 Masiero 2012ApJ...759L...8M NEATM