value unc_up unc_lo author ref method 16.51 6.990 6.990 Nugent 2016AJ....152...63N NEATM 18.28 6.730 6.730 Nugent 2016AJ....152...63N NEATM 21.37 0.117 0.117 Masiero 2011ApJ...741...68M NEATM 22.84 1.540 1.540 Usui 2011PASJ...63.1117U NEATM 23.46 4.690 4.690 Ali-Lagoa 2018A&A...612A..85A NEATM