value	quality	siderealorsynodic	author	ref	method
6.4070	2	Synodic	Waszczak	2015AJ....150...75W	Lightcurve
6.4094	2	Sidereal	Durech	2020A&A...643A..59D	Model
6.4100	2-	Synodic	Erasmus	2020ApJS..247...13E	Lightcurve
6.4140	3	Synodic	Behrend	LCDB	Lightcurve