value	unc_up	unc_lo	author	ref	method
0.247	0.0533	0.0533	Masiero	2011ApJ...741...68M	NEATM
0.265	0.0440	0.0440	Masiero	2012ApJ...759L...8M	NEATM
0.270	0.0500	0.0500	Masiero	2014ApJ...791..121M	NEATM