value	unc_up	unc_lo	author	ref	method
6.41	0.160	0.160	Masiero	2012ApJ...759L...8M	NEATM
7.18	0.660	0.660	Usui	2011PASJ...63.1117U	NEATM
7.39	1.480	1.480	Ali-Lagoa	2018A&A...612A..85A	NEATM
7.87	0.700	0.700	Tedesco	2002AJ....123.1056T	STM