value	quality	siderealorsynodic	author	ref	method
8.6574	3	Synodic	Owings	2021MPBu...48..236O	Lightcurve
8.6581	2	Sidereal	Durech	2023A&A...675A..24D	Model
8.6581	2	Sidereal	Durech	2019A&A...631A...2D	Model