value unc_up unc_lo author ref method 0.163 0.0403 0.0403 Masiero 2011ApJ...741...68M NEATM 0.277 0.0470 0.0470 Masiero 2012ApJ...759L...8M NEATM 0.360 0.1700 0.1700 Nugent 2016AJ....152...63N NEATM