value	unc_up	unc_lo	author	ref	method
9.24	0.640	0.640	Usui	2011PASJ...63.1117U	NEATM
9.45	0.170	0.170	Masiero	2012ApJ...759L...8M	NEATM
9.60	1.920	1.920	Ali-Lagoa	2018A&A...612A..85A	NEATM
9.74	2.660	2.660	Nugent	2016AJ....152...63N	NEATM