value unc_up unc_lo author ref method 6.30 1.850 1.850 Masiero 2020PSJ.....1....5M NEATM 6.81 1.830 1.830 Masiero 2020PSJ.....1....5M NEATM 7.88 2.010 2.010 Masiero 2012ApJ...759L...8M NEATM 8.03 0.800 0.800 Ali-Lagoa 2018A&A...612A..85A NEATM 8.23 0.500 0.500 Tedesco 2002AJ....123.1056T STM 8.70 0.400 0.400 Usui 2011PASJ...63.1117U NEATM