value quality siderealorsynodic author ref method 7.3950 3 Synodic Warner 2000MPBu...27....4W Lightcurve 7.3962 3 Synodic Behrend LCDB Lightcurve 7.3971 2 Sidereal Hanus 2016A&A...586A.108H Model 7.4000 3 Synodic Warner 2010MPBu...37..127W Lightcurve