value unc_up unc_lo author ref method 20.92 8.040 8.040 Nugent 2016AJ....152...63N NEATM 22.49 0.215 0.215 Masiero 2011ApJ...741...68M NEATM 23.08 1.440 1.440 Usui 2011PASJ...63.1117U NEATM 23.83 4.770 4.770 Ali-Lagoa 2018A&A...612A..85A NEATM