value	unc_up	unc_lo	author	ref	method
0.047	0.0305	0.0305	Masiero	2017AJ....154..168M	NEATM
0.060	0.0086	0.0086	Masiero	2011ApJ...741...68M	NEATM
0.069	0.0390	0.0390	Masiero	2012ApJ...759L...8M	NEATM