value	quality	siderealorsynodic	author	ref	method
8.8067	2	Synodic	Pal	2020ApJS..247...26P	Lightcurve
8.8080	2	Synodic	Waszczak	2015AJ....150...75W	Lightcurve
8.8086	2	Sidereal	Durech	2023A&A...675A..24D	Model