value	quality	siderealorsynodic	author	ref	method
18.1109	2	Synodic	Pal	2020ApJS..247...26P	Lightcurve
18.1110	3-	Synodic	Mansego	2016MPBu...43..332M	Lightcurve
18.1426	2	Sidereal	Durech	2020A&A...643A..59D	Model
18.2000	2	Synodic	Behrend	LCDB	Lightcurve