value unc_up unc_lo author ref method 10.19 0.250 0.250 Masiero 2011ApJ...741...68M NEATM 11.22 0.350 0.350 Masiero 2012ApJ...759L...8M NEATM 9.82 2.350 2.350 Nugent 2016AJ....152...63N NEATM