value unc_up unc_lo author ref method 3.74 0.091 0.091 Masiero 2011ApJ...741...68M NEATM 3.84 0.230 0.230 Masiero 2012ApJ...759L...8M NEATM 3.91 0.920 0.920 Nugent 2016AJ....152...63N NEATM