value	unc_up	unc_lo	author	ref	method
14.87	4.910	4.910	Nugent	2016AJ....152...63N	NEATM
15.05	4.277	4.277	Masiero	2017AJ....154..168M	NEATM
19.21	4.080	4.080	Masiero	2012ApJ...759L...8M	NEATM