value unc_up unc_lo author ref method 15.43 0.730 0.730 Masiero 2012ApJ...759L...8M NEATM 18.02 1.330 1.330 Usui 2011PASJ...63.1117U NEATM 18.93 3.790 3.790 Ali-Lagoa 2018A&A...612A..85A NEATM 20.01 0.100 0.100 Masiero 2014ApJ...791..121M NEATM 22.97 0.243 0.243 Masiero 2011ApJ...741...68M NEATM