value unc_up unc_lo author ref method 4.60 0.910 0.910 Nugent 2016AJ....152...63N NEATM 5.62 0.137 0.137 Masiero 2011ApJ...741...68M NEATM 5.73 0.980 0.980 Masiero 2012ApJ...759L...8M NEATM