value	unc_up	unc_lo	author	ref	method
0.306	0.0670	0.0670	Masiero	2012ApJ...759L...8M	NEATM
0.324	0.0555	0.0555	Masiero	2011ApJ...741...68M	NEATM
0.330	0.0500	0.0500	Masiero	2014ApJ...791..121M	NEATM