value	unc_up	unc_lo	author	ref	method
0.038	0.0185	0.0185	Masiero	2011ApJ...741...68M	NEATM
0.040	0.0200	0.0200	Nugent	2016AJ....152...63N	NEATM
0.054	0.0290	0.0620	Masiero	2021PSJ.....2..162M	NEATM