value	quality	siderealorsynodic	author	ref	method
15.6810	2	Synodic	Waszczak	2015AJ....150...75W	Lightcurve
15.6873	2	Sidereal	Durech	2016A&A...587A..48D	Model
15.6920	3-	Synodic	Behrend	LCDB	Lightcurve