value	unc_up	unc_lo	author	ref	method
17.20	1.720	1.720	Ali-Lagoa	2018A&A...612A..85A	NEATM
17.86	0.930	0.930	Usui	2011PASJ...63.1117U	NEATM
18.95	0.180	0.180	Masiero	2011ApJ...741...68M	NEATM