value	unc_up	unc_lo	author	ref	method
49.25	0.520	0.520	Grav	2012ApJ...759...49G	NEATM
49.80	1.800	1.800	Fernandez	2003AJ....126.1563F	RADIOMETRY_STM
50.73	0.800	0.800	Grav	2011ApJ...742...40G	NEATM
58.00	1.200	1.200	Fernandez	2003AJ....126.1563F	RADIOMETRY_STM