value unc_up unc_lo author ref method 6.80 0.410 0.410 Masiero 2012ApJ...759L...8M NEATM 6.99 0.080 0.080 Masiero 2014ApJ...791..121M NEATM 7.00 0.500 0.500 Usui 2011PASJ...63.1117U NEATM 7.24 0.031 0.031 Masiero 2011ApJ...741...68M NEATM 7.43 1.490 1.490 Ali-Lagoa 2018A&A...612A..85A NEATM