value unc_up unc_lo author ref method 4.58 0.110 0.110 Masiero 2012ApJ...759L...8M NEATM 5.00 1.340 1.340 Nugent 2016AJ....152...63N NEATM 5.28 0.089 0.089 Masiero 2011ApJ...741...68M NEATM