value	quality	siderealorsynodic	author	ref	method
18.6090	2+	Synodic	Behrend	LCDB	Lightcurve
18.6350	3-	Synodic	Warner	2009MPBu...36....7W	Lightcurve
18.6503	2	Sidereal	Durech	2020A&A...643A..59D	Model
5.2300	2	Synodic	De Sanctis	1994P&SS...42..859D	Lightcurve