value	quality	siderealorsynodic	author	ref	method
12.0000	2	Synodic	Angeli	1996P&SS...44..181A	Lightcurve
19.9300	3-	Synodic	Polakis	2022MPBu...49..298P	Lightcurve
19.9375	2	Sidereal	Durech	2020A&A...643A..59D	Model
19.9377	2	Sidereal	Durech	2023A&A...675A..24D	Model