value	unc_up	unc_lo	author	ref	method
2.49	0.650	0.650	Nugent	2016AJ....152...63N	NEATM
2.54	0.570	0.570	Masiero	2020PSJ.....1....5M	NEATM
2.82	0.485	0.485	Masiero	2011ApJ...741...68M	NEATM