value	quality	siderealorsynodic	author	ref	method
18.5400	3	Synodic	Harris	1983Icar...54...59H	Lightcurve
18.5539	2	Sidereal	Viikinkoski	2017A&A...607A.117V	Model
18.5540	2	Sidereal	Durech	2009A&A...493..291D	Model
18.5540	2	Sidereal	Hanus	2013Icar..226.1045H	Model
18.5563	2	Sidereal	Durech	2023A&A...675A..24D	Model
18.5570	3	Synodic	Harris	1989Icar...81..314H	Lightcurve
18.5700	2-	Synodic	Behrend	LCDB	Lightcurve
18.5710	3-	Synodic	Behrend	LCDB	Lightcurve