value	unc_up	unc_lo	author	ref	method
20.47	5.570	5.570	Masiero	2021PSJ.....2..162M	NEATM
21.74	8.930	8.930	Nugent	2016AJ....152...63N	NEATM
22.68	0.190	0.190	Masiero	2014ApJ...791..121M	NEATM
22.91	0.093	0.093	Masiero	2011ApJ...741...68M	NEATM
39.58	3.500	3.500	Tedesco	2002AJ....123.1056T	STM