value unc_up unc_lo author ref method 0.268 0.0400 0.0400 Masiero 2011ApJ...741...68M NEATM 0.340 0.1090 0.1090 Masiero 2012ApJ...759L...8M NEATM 0.400 0.1700 0.1700 Nugent 2016AJ....152...63N NEATM