value	quality	siderealorsynodic	author	ref	method
8.8340	3-	Synodic	Behrend	LCDB	Lightcurve
8.8690	3	Synodic	Warner	2003MPBu...30...33W	Lightcurve
8.8770	2	Synodic	Waszczak	2015AJ....150...75W	Lightcurve
8.8800	2	Sidereal	Durech	2016A&A...587A..48D	Model
8.8800	2	Sidereal	Durech	2023A&A...675A..24D	Model