value unc_up unc_lo author ref method 0.192 0.0140 0.0140 Masiero 2012ApJ...759L...8M NEATM 0.218 0.0770 0.0770 Masiero 2012ApJ...759L...8M NEATM 0.260 0.1200 0.1200 Nugent 2016AJ....152...63N NEATM