value unc_up unc_lo author ref method 10.64 3.050 3.050 Nugent 2016AJ....152...63N NEATM 11.61 0.490 0.490 Masiero 2012ApJ...759L...8M NEATM 8.27 0.053 0.053 Masiero 2011ApJ...741...68M NEATM