value	quality	siderealorsynodic	author	ref	method
8.6500	3-	Synodic	Chang	2014ApJ...788...17C	Lightcurve
8.6527	2	Sidereal	Durech	2018A&A...617A..57D	Model
8.6540	2	Synodic	Waszczak	2015AJ....150...75W	Lightcurve