value unc_up unc_lo author ref method 0.208 0.0493 0.0493 Masiero 2011ApJ...741...68M NEATM 0.230 0.1400 0.1400 Nugent 2016AJ....152...63N NEATM 0.260 0.0400 0.0400 Masiero 2014ApJ...791..121M NEATM 0.298 0.0260 0.0260 Masiero 2012ApJ...759L...8M NEATM