value quality siderealorsynodic author ref method 6.1000 1 Synodic DeGraff 1998AAS...193.9608D Lightcurve 6.1000 1 Synodic DeGraff LCDB Lightcurve 6.5340 2 Synodic Waszczak 2015AJ....150...75W Lightcurve 6.5352 2 Sidereal Durech 2023A&A...675A..24D Model 6.5360 3 Synodic Ditteon 2004MPBu...31...54D Lightcurve