value	unc_up	unc_lo	author	ref	method
0.210	0.1300	0.1300	Nugent	2016AJ....152...63N	NEATM
0.248	0.1900	0.1900	Masiero	2012ApJ...759L...8M	NEATM
0.373	0.1629	0.1629	Masiero	2011ApJ...741...68M	NEATM