value unc_up unc_lo author ref method 0.277 0.0214 0.0214 Masiero 2011ApJ...741...68M NEATM 0.300 0.1300 0.1300 Nugent 2016AJ....152...63N NEATM 0.389 0.1900 0.1900 Masiero 2012ApJ...759L...8M NEATM