value	unc_up	unc_lo	author	ref	method
0.250	0.1200	0.1200	Nugent	2016AJ....152...63N	NEATM
0.268	0.0736	0.0736	Masiero	2011ApJ...741...68M	NEATM
0.280	0.0500	0.0500	Masiero	2014ApJ...791..121M	NEATM