value unc_up unc_lo author ref method 6.55 0.150 0.150 Masiero 2014ApJ...791..121M NEATM 6.64 0.150 0.150 Masiero 2014ApJ...791..121M NEATM 6.68 0.510 0.510 Usui 2011PASJ...63.1117U NEATM 6.69 0.045 0.045 Masiero 2011ApJ...741...68M NEATM 7.16 1.430 1.430 Ali-Lagoa 2018A&A...612A..85A NEATM 7.37 0.034 0.034 Masiero 2011ApJ...741...68M NEATM