value	quality	siderealorsynodic	author	ref	method
6.7440	2	Synodic	Waszczak	2015AJ....150...75W	Lightcurve
6.7580	2-	Synodic	Masiero	2009Icar..204..145M	Lightcurve
6.7600	2	Synodic	Chang	2015ApJS..219...27C	Lightcurve