value	unc_up	unc_lo	author	ref	method
0.035	0.0056	0.0056	Masiero	2011ApJ...741...68M	NEATM
0.040	0.0600	0.0600	Nugent	2016AJ....152...63N	NEATM
0.044	0.0340	0.0340	Masiero	2017AJ....154..168M	NEATM
0.049	0.0320	0.0880	Masiero	2021PSJ.....2..162M	NEATM