value	unc_up	unc_lo	author	ref	method
0.028	0.0168	0.0168	Masiero	2017AJ....154..168M	NEATM
0.030	0.0200	0.0200	Nugent	2016AJ....152...63N	NEATM
0.042	0.0180	0.0180	Masiero	2012ApJ...759L...8M	NEATM