value unc_up unc_lo author ref method 0.220 0.1100 0.1100 Nugent 2016AJ....152...63N NEATM 0.248 0.0565 0.0565 Masiero 2011ApJ...741...68M NEATM 0.266 0.0420 0.0420 Masiero 2012ApJ...759L...8M NEATM