value	unc_up	unc_lo	author	ref	method
2.79	0.650	0.650	Nugent	2016AJ....152...63N	NEATM
2.92	0.720	0.720	Masiero	2021PSJ.....2..162M	NEATM
3.83	0.805	0.805	Masiero	2011ApJ...741...68M	NEATM