value quality siderealorsynodic author ref method 4.9660 3 Synodic Wisniewski 1991Icar...90..117W Lightcurve 4.9671 3- Synodic Polakis 2017MPBu...44..299P Lightcurve 4.9680 3 Synodic Dose 2021MPBu...48..228D Lightcurve 4.9685 3 Synodic Pilcher 2021MPBu...48..217P Lightcurve 4.9688 2+ Synodic Benishek 2018MPBu...45...82B Lightcurve 4.9693 2 Sidereal Durech 2020A&A...643A..59D Model