value unc_up unc_lo author ref method 0.080 0.0600 0.0600 Nugent 2016AJ....152...63N NEATM 0.080 0.1200 0.1200 Nugent 2016AJ....152...63N NEATM 0.083 0.0190 0.0190 Masiero 2012ApJ...759L...8M NEATM