value	unc_up	unc_lo	author	ref	method
3.98	0.140	0.140	Masiero	2012ApJ...759L...8M	NEATM
4.14	0.050	0.050	Masiero	2014ApJ...791..121M	NEATM
4.26	0.038	0.038	Masiero	2011ApJ...741...68M	NEATM