value unc_up unc_lo author ref method 0.140 0.0700 0.0700 Nugent 2016AJ....152...63N NEATM 0.178 0.0369 0.0369 Masiero 2011ApJ...741...68M NEATM 0.283 0.0730 0.0730 Masiero 2012ApJ...759L...8M NEATM