value unc_up unc_lo author ref method 9.69 2.980 2.980 Nugent 2016AJ....152...63N NEATM 9.82 4.730 4.730 Masiero 2012ApJ...759L...8M NEATM 9.90 0.053 0.053 Masiero 2011ApJ...741...68M NEATM