value unc_up unc_lo author ref method 18.15 3.990 3.990 Nugent 2016AJ....152...63N NEATM 21.60 0.387 0.387 Masiero 2011ApJ...741...68M NEATM 23.05 5.560 5.560 Masiero 2012ApJ...759L...8M NEATM 25.66 1.810 1.810 Usui 2011PASJ...63.1117U NEATM 26.43 5.290 5.290 Ali-Lagoa 2018A&A...612A..85A NEATM