value	unc_up	unc_lo	author	ref	method
18.37	0.075	0.075	Masiero	2011ApJ...741...68M	NEATM
19.05	4.870	4.870	Nugent	2016AJ....152...63N	NEATM
20.31	4.060	4.060	Ali-Lagoa	2018A&A...612A..85A	NEATM
20.40	1.510	1.510	Usui	2011PASJ...63.1117U	NEATM