value	unc_up	unc_lo	author	ref	method
3.12	1.084	1.084	Masiero	2017AJ....154..168M	NEATM
3.97	0.182	0.182	Masiero	2011ApJ...741...68M	NEATM
3.99	1.380	1.380	Masiero	2021PSJ.....2..162M	NEATM
4.17	1.141	1.141	Masiero	2017AJ....154..168M	NEATM