value	unc_up	unc_lo	author	ref	method
0.031	0.0610	0.0610	Masiero	2012ApJ...759L...8M	NEATM
0.032	0.0240	0.0240	Masiero	2020PSJ.....1....5M	NEATM
0.036	0.0211	0.0211	Masiero	2017AJ....154..168M	NEATM
0.038	0.0029	0.0029	Masiero	2011ApJ...741...68M	NEATM