value	unc_up	unc_lo	author	ref	method
6.19	1.708	1.708	Masiero	2017AJ....154..168M	NEATM
6.20	1.790	1.790	Masiero	2021PSJ.....2..162M	NEATM
7.08	2.060	2.060	Masiero	2020PSJ.....1....5M	NEATM
8.08	0.045	0.045	Masiero	2011ApJ...741...68M	NEATM