value	quality	siderealorsynodic	author	ref	method
12.0000	1	Synodic	Lagerkvist	1978A&AS...31..361L	Lightcurve
17.5000	0	Synodic	Bailey	1913AnHar..72..165B	Lightcurve
19.6000	2	Synodic	Lagerkvist	1978A&AS...32..339L	Lightcurve
19.7000	2	Synodic	Behrend	LCDB	Lightcurve
19.8420	3	Synodic	Pilcher	2011MPBu...38...76P	Lightcurve
19.8435	2	Sidereal	Durech	2016A&A...587A..48D	Model