value	quality	siderealorsynodic	author	ref	method
6.8910	2	Synodic	Waszczak	2015AJ....150...75W	Lightcurve
6.9000	2	Synodic	Behrend	LCDB	Lightcurve
6.9070	3	Synodic	Bembrick	2001MPBu...28...42B	Lightcurve
7.0000	1	Synodic	Taylor	1976AJ.....81..778T	Lightcurve