value	unc_up	unc_lo	author	ref	method
0.220	0.1200	0.1200	Nugent	2016AJ....152...63N	NEATM
0.293	0.0370	0.0370	Masiero	2011ApJ...741...68M	NEATM
0.335	0.0550	0.0550	Masiero	2012ApJ...759L...8M	NEATM