value unc_up unc_lo author ref method 4.36 1.020 1.020 Nugent 2016AJ....152...63N NEATM 4.43 0.090 0.090 Masiero 2011ApJ...741...68M NEATM 4.68 0.190 0.190 Masiero 2012ApJ...759L...8M NEATM