value	unc_up	unc_lo	author	ref	method
0.257	0.0267	0.0267	Masiero	2011ApJ...741...68M	NEATM
0.260	0.0500	0.0500	Masiero	2014ApJ...791..121M	NEATM
0.280	0.1700	0.1700	Nugent	2016AJ....152...63N	NEATM