value	quality	siderealorsynodic	author	ref	method
9.1900	2	Synodic	Waszczak	2015AJ....150...75W	Lightcurve
9.1932	2	Synodic	Pal	2020ApJS..247...26P	Lightcurve
9.1942	2	Sidereal	Durech	2020A&A...643A..59D	Model