value unc_up unc_lo author ref method 0.270 0.1100 0.1100 Nugent 2016AJ....152...63N NEATM 0.340 0.1300 0.1300 Nugent 2016AJ....152...63N NEATM 0.380 0.0420 0.0420 Masiero 2012ApJ...759L...8M NEATM