value	quality	siderealorsynodic	author	ref	method
2.7790	3	Synodic	Warner	2010MPBu...37...24W	Lightcurve
2.7800	3	Synodic	Warner	2021MPBu...48..187W	Lightcurve
2.7800	2+	Synodic	Stephens	2017MPBu...44...49S	Lightcurve