value	unc_up	unc_lo	author	ref	method
0.040	0.0300	0.0300	Nugent	2016AJ....152...63N	NEATM
0.047	0.0160	0.0240	Masiero	2021PSJ.....2..162M	NEATM
0.049	0.0160	0.0160	Masiero	2012ApJ...759L...8M	NEATM