value quality siderealorsynodic author ref method 20.0000 0 Synodic Taylor 1976AJ.....81..778T Lightcurve 9.7270 3 Synodic Harris 1983Icar...54...59H Lightcurve 9.7289 2+ Synodic Behrend LCDB Lightcurve 9.7300 2 Synodic Behrend LCDB Lightcurve 9.7300 3 Synodic Michalowski 2005A&A...443..329M Lightcurve 9.7360 3 Synodic Behrend LCDB Lightcurve