value	unc_up	unc_lo	author	ref	method
20.83	1.450	1.450	Usui	2011PASJ...63.1117U	NEATM
21.35	4.270	4.270	Ali-Lagoa	2018A&A...612A..85A	NEATM
23.01	4.070	4.070	Masiero	2012ApJ...759L...8M	NEATM
24.28	0.335	0.335	Masiero	2011ApJ...741...68M	NEATM