value	unc_up	unc_lo	author	ref	method
0.030	0.0253	0.0253	Masiero	2017AJ....154..168M	NEATM
0.036	0.0220	0.0220	Masiero	2020PSJ.....1....5M	NEATM
0.048	0.0320	0.0320	Masiero	2012ApJ...759L...8M	NEATM