value	quality	siderealorsynodic	author	ref	method
8.9983	2	Sidereal	Durech	2019A&A...631A...2D	Model
8.9992	3	Synodic	Behrend	LCDB	Lightcurve
8.9993	2	Synodic	Pal	2020ApJS..247...26P	Lightcurve
9.0020	2	Synodic	McNeill	2019ApJS..245...29M	Lightcurve