value	unc_up	unc_lo	author	ref	method
18.91	6.800	6.800	Nugent	2016AJ....152...63N	NEATM
20.50	1.610	1.610	Usui	2011PASJ...63.1117U	NEATM
20.95	4.190	4.190	Ali-Lagoa	2018A&A...612A..85A	NEATM
21.93	0.580	0.580	Masiero	2012ApJ...759L...8M	NEATM
24.56	2.000	2.000	Tedesco	2002AJ....123.1056T	STM