value unc_up unc_lo author ref method 5.83 1.510 1.510 Nugent 2016AJ....152...63N NEATM 5.84 0.307 0.307 Masiero 2011ApJ...741...68M NEATM 6.00 0.070 0.070 Masiero 2014ApJ...791..121M NEATM 6.33 0.070 0.070 Masiero 2011ApJ...741...68M NEATM