value unc_up unc_lo author ref method 10.06 0.260 0.260 Masiero 2012ApJ...759L...8M NEATM 5.99 0.212 0.212 Masiero 2011ApJ...741...68M NEATM 8.54 1.990 1.990 Nugent 2016AJ....152...63N NEATM