value unc_up unc_lo author ref method 20.72 4.140 4.140 Ali-Lagoa 2018A&A...612A..85A NEATM 21.50 0.710 0.710 Usui 2011PASJ...63.1117U NEATM 23.37 4.670 4.670 Ali-Lagoa 2018A&A...612A..85A NEATM 24.03 3.020 3.020 Masiero 2012ApJ...759L...8M NEATM