value	unc_up	unc_lo	author	ref	method
0.260	0.1000	0.1000	Nugent	2016AJ....152...63N	NEATM
0.285	0.0520	0.0520	Masiero	2012ApJ...759L...8M	NEATM
0.302	0.0541	0.0541	Masiero	2011ApJ...741...68M	NEATM