value	quality	siderealorsynodic	author	ref	method
8.9380	2	Synodic	Waszczak	2015AJ....150...75W	Lightcurve
8.9684	2	Sidereal	Durech	2020A&A...643A..59D	Model
8.9702	2	Synodic	Pal	2020ApJS..247...26P	Lightcurve