value	unc_up	unc_lo	author	ref	method
0.027	0.0050	0.0050	Masiero	2011ApJ...741...68M	NEATM
0.028	0.0210	0.0210	Masiero	2020PSJ.....1....5M	NEATM
0.030	0.0100	0.0100	Nugent	2016AJ....152...63N	NEATM
0.030	0.0200	0.0200	Nugent	2016AJ....152...63N	NEATM