value unc_up unc_lo author ref method 3.76 0.710 0.710 Nugent 2016AJ....152...63N NEATM 3.85 0.214 0.214 Masiero 2011ApJ...741...68M NEATM 4.13 0.990 0.990 Masiero 2012ApJ...759L...8M NEATM