value	unc_up	unc_lo	author	ref	method
17.50	5.420	5.420	Nugent	2016AJ....152...63N	NEATM
19.37	5.708	5.708	Masiero	2017AJ....154..168M	NEATM
19.96	6.160	6.160	Nugent	2016AJ....152...63N	NEATM
20.06	2.170	2.170	Masiero	2012ApJ...759L...8M	NEATM
21.11	11.720	11.720	Masiero	2012ApJ...759L...8M	NEATM