value unc_up unc_lo author ref method 7.61 0.400 0.400 Masiero 2012ApJ...759L...8M NEATM 9.49 0.670 0.670 Usui 2011PASJ...63.1117U NEATM 9.87 1.970 1.970 Ali-Lagoa 2018A&A...612A..85A NEATM