value unc_up unc_lo author ref method 3.80 0.102 0.102 Masiero 2011ApJ...741...68M NEATM 3.86 0.499 0.499 Masiero 2011ApJ...741...68M NEATM 4.99 1.180 1.180 Nugent 2016AJ....152...63N NEATM