value unc_up unc_lo author ref method 4.43 0.690 0.690 Nugent 2016AJ....152...63N NEATM 5.51 0.241 0.241 Masiero 2011ApJ...741...68M NEATM 5.62 0.112 0.112 Masiero 2011ApJ...741...68M NEATM