value unc_up unc_lo author ref method 0.190 0.1200 0.1200 Nugent 2016AJ....152...63N NEATM 0.253 0.0543 0.0543 Masiero 2011ApJ...741...68M NEATM 0.393 0.1920 0.1920 Masiero 2012ApJ...759L...8M NEATM