value	unc_up	unc_lo	author	ref	method
0.040	0.0200	0.0200	Nugent	2016AJ....152...63N	NEATM
0.041	0.0300	0.0300	Masiero	2012ApJ...759L...8M	NEATM
0.046	0.0277	0.0277	Masiero	2017AJ....154..168M	NEATM