value	unc_up	unc_lo	author	ref	method
0.040	0.0267	0.0267	Masiero	2017AJ....154..168M	NEATM
0.044	0.0300	0.0300	Masiero	2020PSJ.....1....5M	NEATM
0.061	0.0045	0.0045	Masiero	2011ApJ...741...68M	NEATM