value	quality	siderealorsynodic	author	ref	method
18.7130	2	Synodic	Waszczak	2015AJ....150...75W	Lightcurve
18.7157	2	Sidereal	Durech	2023A&A...675A..24D	Model
18.9400	2	Synodic	Behrend	LCDB	Lightcurve
19.0350	3-	Synodic	Carbognani	2007MPBu...34....5C	Lightcurve