value unc_up unc_lo author ref method 11.09 2.980 2.980 Nugent 2016AJ....152...63N NEATM 12.10 0.094 0.094 Masiero 2011ApJ...741...68M NEATM 9.94 2.960 2.960 Nugent 2016AJ....152...63N NEATM