value	quality	siderealorsynodic	author	ref	method
6.8900	2-	Synodic	Chang	2014ApJ...788...17C	Lightcurve
6.9231	2	Sidereal	Durech	2020A&A...643A..59D	Model
6.9240	3-	Synodic	Ditteon	2010MPBu...37....1D	Lightcurve
6.9250	2	Synodic	Waszczak	2015AJ....150...75W	Lightcurve