value unc_up unc_lo author ref method 21.11 4.220 4.220 Ali-Lagoa 2018A&A...612A..85A NEATM 23.73 1.490 1.490 Usui 2011PASJ...63.1117U NEATM 25.28 5.060 5.060 Ali-Lagoa 2018A&A...612A..85A NEATM 27.31 0.260 0.260 Masiero 2014ApJ...791..121M NEATM 27.58 1.140 1.140 Masiero 2012ApJ...759L...8M NEATM 33.01 0.172 0.172 Masiero 2011ApJ...741...68M NEATM