value	quality	siderealorsynodic	author	ref	method
6.8778	3-	Synodic	Stephens	2020MPBu...47..224S	Lightcurve
6.8780	3-	Synodic	Behrend	LCDB	Lightcurve
6.8782	3	Synodic	Pravec	LCDB	Lightcurve