value unc_up unc_lo author ref method 9.53 0.750 0.750 Usui 2011PASJ...63.1117U NEATM 9.81 1.650 1.650 Masiero 2012ApJ...759L...8M NEATM 9.99 2.000 2.000 Ali-Lagoa 2018A&A...612A..85A NEATM