value	quality	siderealorsynodic	author	ref	method
6.6568	2	Sidereal	Durech	2018A&A...617A..57D	Model
6.6569	2	Sidereal	Durech	2023A&A...675A..24D	Model
6.6571	3	Synodic	Pravec	LCDB	Lightcurve
6.6580	2	Synodic	Erasmus	2020ApJS..247...13E	Lightcurve