value unc_up unc_lo author ref method 17.47 3.490 3.490 Ali-Lagoa 2018A&A...612A..85A NEATM 19.24 1.920 1.920 Ali-Lagoa 2018A&A...612A..85A NEATM 19.27 0.520 0.520 Usui 2011PASJ...63.1117U NEATM 19.98 0.140 0.140 Masiero 2014ApJ...791..121M NEATM 20.66 0.210 0.210 Masiero 2011ApJ...741...68M NEATM 20.73 0.270 0.270 Masiero 2014ApJ...791..121M NEATM 21.49 0.192 0.192 Masiero 2011ApJ...741...68M NEATM