value unc_up unc_lo author ref method 50.47 0.540 0.540 Grav 2011ApJ...742...40G NEATM 54.08 0.620 0.620 Grav 2012ApJ...759...49G NEATM 55.34 4.040 4.040 Usui 2011PASJ...63.1117U NEATM 55.96 11.190 11.190 Ali-Lagoa 2018A&A...612A..85A NEATM