value	unc_up	unc_lo	author	ref	method
6.83	2.357	2.357	Masiero	2017AJ....154..168M	NEATM
7.46	0.207	0.207	Masiero	2011ApJ...741...68M	NEATM
7.90	1.840	1.840	Masiero	2020PSJ.....1....5M	NEATM