value	quality	siderealorsynodic	author	ref	method
27.2000	3-	Synodic	Moravec	2012MPBu...39..213M	Lightcurve
27.3280	2	Synodic	Waszczak	2015AJ....150...75W	Lightcurve
27.3620	2	Sidereal	Durech	2020A&A...643A..59D	Model
27.3620	2	Sidereal	Durech	2023A&A...675A..24D	Model