value unc_up unc_lo author ref method 3.97 0.910 0.910 Nugent 2016AJ....152...63N NEATM 4.59 0.205 0.205 Masiero 2011ApJ...741...68M NEATM 4.99 0.100 0.100 Masiero 2012ApJ...759L...8M NEATM