value unc_up unc_lo author ref method 7.16 0.210 0.210 Masiero 2012ApJ...759L...8M NEATM 7.58 0.376 0.376 Masiero 2011ApJ...741...68M NEATM 8.06 0.500 0.500 Usui 2011PASJ...63.1117U NEATM 8.39 1.680 1.680 Ali-Lagoa 2018A&A...612A..85A NEATM