value	unc_up	unc_lo	author	ref	method
6.90	1.640	1.640	Nugent	2016AJ....152...63N	NEATM
7.00	1.960	1.960	Masiero	2021PSJ.....2..162M	NEATM
7.21	2.120	2.120	Masiero	2020PSJ.....1....5M	NEATM
7.26	1.810	1.810	Masiero	2020PSJ.....1....5M	NEATM
8.56	0.029	0.029	Masiero	2011ApJ...741...68M	NEATM
8.97	4.020	4.020	Masiero	2012ApJ...759L...8M	NEATM