value	unc_up	unc_lo	author	ref	method
0.300	0.1500	0.1500	Nugent	2016AJ....152...63N	NEATM
0.309	0.0556	0.0556	Masiero	2011ApJ...741...68M	NEATM
0.310	0.0300	0.0300	Masiero	2014ApJ...791..121M	NEATM