value	unc_up	unc_lo	author	ref	method
0.029	0.0130	0.0240	Masiero	2021PSJ.....2..162M	NEATM
0.030	0.0200	0.0200	Nugent	2016AJ....152...63N	NEATM
0.063	0.0101	0.0101	Masiero	2011ApJ...741...68M	NEATM