value unc_up unc_lo author ref method 0.090 0.0500 0.0500 Nugent 2016AJ....152...63N NEATM 0.123 0.0880 0.0880 Masiero 2012ApJ...759L...8M NEATM 0.194 0.0407 0.0407 Masiero 2011ApJ...741...68M NEATM