value	unc_up	unc_lo	author	ref	method
2.78	nan	nan	Warner	2010MPBu...37...24W	Lightcurve
2.78	nan	nan	Warner	2021MPBu...48..187W	Lightcurve
2.78	nan	nan	Stephens	2017MPBu...44...49S	Lightcurve