value	quality	siderealorsynodic	author	ref	method
6.8880	3-	Synodic	Stanzel	1978A&AS...34..373S	Lightcurve
6.8938	3-	Synodic	Behrend	LCDB	Lightcurve
6.8950		Synodic	Michalowski	2006A&A...459..663M	Lightcurve
6.8952	2	Sidereal	Martikainen	2021A&A...649A..98M	Model
6.8952	2	Sidereal	Durech	LCDB	Model
6.8952	2	Sidereal	Durech	2023A&A...675A..24D	Model
6.8952	2	Sidereal	Viikinkoski	2017A&A...607A.117V	Model
6.8954	3	Synodic	Behrend	LCDB	Lightcurve
6.8960	3	Synodic	Alton	2015MPBu...42..146A	Lightcurve
6.8960	3	Synodic	Strabla	2011MPBu...38..169S	Lightcurve
6.8970	2	Synodic	Behrend	LCDB	Lightcurve
6.8970	2	Synodic	Waszczak	2015AJ....150...75W	Lightcurve
6.9000	2+	Synodic	Behrend	LCDB	Lightcurve