value	unc_up	unc_lo	author	ref	method
10.23	2.600	2.600	Nugent	2016AJ....152...63N	NEATM
12.04	3.360	3.360	Masiero	2012ApJ...759L...8M	NEATM
8.81	2.150	2.150	Masiero	2020PSJ.....1....5M	NEATM