value unc_up unc_lo author ref method 11.94 4.240 4.240 Nugent 2016AJ....152...63N NEATM 13.13 0.093 0.093 Masiero 2011ApJ...741...68M NEATM 13.32 4.730 4.730 Masiero 2012ApJ...759L...8M NEATM