value	unc_up	unc_lo	author	ref	method
17.83	2.620	2.620	Masiero	2012ApJ...759L...8M	NEATM
17.84	4.820	4.820	Nugent	2016AJ....152...63N	NEATM
20.04	5.740	5.740	Nugent	2016AJ....152...63N	NEATM