value unc_up unc_lo author ref method 6.20 0.320 0.320 Masiero 2012ApJ...759L...8M NEATM 7.19 1.440 1.440 Ali-Lagoa 2018A&A...612A..85A NEATM 7.36 0.480 0.480 Usui 2011PASJ...63.1117U NEATM