value	unc_up	unc_lo	author	ref	method
8.12	2.240	2.240	Nugent	2016AJ....152...63N	NEATM
8.16	1.580	1.580	Masiero	2020PSJ.....1....5M	NEATM
8.59	1.420	1.420	Masiero	2012ApJ...759L...8M	NEATM