value	unc_up	unc_lo	author	ref	method
7.33	1.980	1.980	Masiero	2021PSJ.....2..162M	NEATM
7.57	2.100	2.100	Masiero	2020PSJ.....1....5M	NEATM
8.18	1.924	1.924	Masiero	2017AJ....154..168M	NEATM
8.95	0.240	0.240	Masiero	2011ApJ...741...68M	NEATM