value	quality	siderealorsynodic	author	ref	method
8.7380	3-	Synodic	Mas	2018MPBu...45...76M	Lightcurve
8.7502	2	Sidereal	Durech	2019A&A...631A...2D	Model
8.7510	2	Synodic	Hayes	2017MPBu...44..308H	Lightcurve
8.7510	2	Synodic	Waszczak	2015AJ....150...75W	Lightcurve