value	quality	siderealorsynodic	author	ref	method
27.3500	3-	Synodic	Marchini	2020MPBu...47..265M	Lightcurve
27.3652	2	Sidereal	Durech	2020A&A...643A..59D	Model
27.3662	2	Sidereal	Durech	2018A&A...617A..57D	Model
27.4000	2	Synodic	Behrend	LCDB	Lightcurve