value	unc_up	unc_lo	author	ref	method
17.98	3.600	3.600	Ali-Lagoa	2018A&A...612A..85A	NEATM
20.32	1.220	1.220	Usui	2011PASJ...63.1117U	NEATM
20.85	0.535	0.535	Masiero	2011ApJ...741...68M	NEATM