value	unc_up	unc_lo	author	ref	method
0.173	0.0200	0.0200	Masiero	2012ApJ...759L...8M	NEATM
0.187	0.0125	0.0125	Masiero	2011ApJ...741...68M	NEATM
0.240	0.0200	0.0200	Masiero	2014ApJ...791..121M	NEATM