value	quality	siderealorsynodic	author	ref	method
8.7076	2	Synodic	Pal	2020ApJS..247...26P	Lightcurve
8.7130	2	Synodic	Waszczak	2015AJ....150...75W	Lightcurve
8.7300	2	Synodic	Chang	2015ApJS..219...27C	Lightcurve