value	unc_up	unc_lo	author	ref	method
6.70	1.990	1.990	Masiero	2021PSJ.....2..162M	NEATM
6.93	0.200	0.200	Masiero	2012ApJ...759L...8M	NEATM
7.04	2.760	2.760	Masiero	2020PSJ.....1....5M	NEATM
7.25	0.164	0.164	Masiero	2011ApJ...741...68M	NEATM