value	unc_up	unc_lo	author	ref	method
0.240	0.1200	0.1200	Nugent	2016AJ....152...63N	NEATM
0.279	0.0400	0.0400	Masiero	2012ApJ...759L...8M	NEATM
0.374	0.0742	0.0742	Masiero	2011ApJ...741...68M	NEATM