value unc_up unc_lo author ref method 0.040 0.0200 0.0200 Nugent 2016AJ....152...63N NEATM 0.070 0.0100 0.0100 Masiero 2014ApJ...791..121M NEATM 0.073 0.0135 0.0135 Masiero 2011ApJ...741...68M NEATM