value	unc_up	unc_lo	author	ref	method
0.226	0.0491	0.0491	Masiero	2011ApJ...741...68M	NEATM
0.260	0.0800	0.0800	Nugent	2016AJ....152...63N	NEATM
0.269	0.0476	0.0476	Masiero	2011ApJ...741...68M	NEATM