value	quality	siderealorsynodic	author	ref	method
54.2980	2	Synodic	Waszczak	2015AJ....150...75W	Lightcurve
54.7780	3-	Synodic	Skiff	2019MPBu...46..458S	Lightcurve
54.8410	2	Sidereal	Durech	2023A&A...675A..24D	Model
54.8670	3-	Synodic	Skiff	LCDB	Lightcurve