value unc_up unc_lo author ref method 9.15 1.910 1.910 Nugent 2016AJ....152...63N NEATM 9.26 0.100 0.100 Masiero 2014ApJ...791..121M NEATM 9.46 0.330 0.330 Masiero 2012ApJ...759L...8M NEATM 9.95 0.092 0.092 Masiero 2011ApJ...741...68M NEATM