value	unc_up	unc_lo	author	ref	method
17.88	1.230	1.230	Usui	2011PASJ...63.1117U	NEATM
18.20	0.160	0.160	Masiero	2014ApJ...791..121M	NEATM
18.34	3.670	3.670	Ali-Lagoa	2018A&A...612A..85A	NEATM
19.07	0.298	0.298	Masiero	2011ApJ...741...68M	NEATM
23.26	2.400	2.400	Tedesco	2002AJ....123.1056T	STM