value unc_up unc_lo author ref method 17.71 0.550 0.550 Grav 2012ApJ...744..197G NEATM 19.88 3.980 3.980 Ali-Lagoa 2018A&A...612A..85A NEATM 20.16 0.990 0.990 Usui 2011PASJ...63.1117U NEATM 22.23 4.450 4.450 Ali-Lagoa 2018A&A...612A..85A NEATM