value	quality	siderealorsynodic	author	ref	method
6.7596	2	Sidereal	Durech	2023A&A...675A..24D	Model
6.7600	2-	Synodic	Erasmus	2020ApJS..247...13E	Lightcurve
6.7600	2	Synodic	Waszczak	2015AJ....150...75W	Lightcurve