value	unc_up	unc_lo	author	ref	method
6.99	2.240	2.240	Masiero	2021PSJ.....2..162M	NEATM
7.07	2.130	2.130	Masiero	2020PSJ.....1....5M	NEATM
7.14	2.030	2.030	Nugent	2016AJ....152...63N	NEATM
7.37	2.250	2.250	Masiero	2012ApJ...759L...8M	NEATM