value	unc_up	unc_lo	author	ref	method
20.28	0.850	0.850	Usui	2011PASJ...63.1117U	NEATM
20.34	4.070	4.070	Ali-Lagoa	2018A&A...612A..85A	NEATM
20.77	4.614	4.614	Masiero	2011ApJ...741...68M	NEATM