value	quality	siderealorsynodic	author	ref	method
6.2668	2	Sidereal	Durech	2019A&A...631A...2D	Model
6.2680	2	Synodic	Waszczak	2015AJ....150...75W	Lightcurve
6.7050	2-	Synodic	Erasmus	2020ApJS..247...13E	Lightcurve