value unc_up unc_lo author ref method 14.41 3.720 3.720 Nugent 2016AJ....152...63N NEATM 15.11 2.410 2.410 Masiero 2012ApJ...759L...8M NEATM 15.57 4.220 4.220 Nugent 2016AJ....152...63N NEATM