value quality siderealorsynodic author ref method 2.7100 2 Synodic Ruthroff 2018MPBu...45..130R Lightcurve 2.7100 3- Synodic Aznar 2018MPBu...45...92A Lightcurve 2.8668 2 Sidereal Durech 2020A&A...643A..59D Model 2.8670 2 Synodic Montminy 2018MPBu...45..331M Lightcurve 2.8670 3 Synodic Pravec LCDB Lightcurve 2.8670 3 Synodic Skiff 2019MPBu...46..238S Lightcurve 2.8670 3 Synodic Stephens 2018CBET.4480....1S Lightcurve 2.8670 3 Synodic Stephens 2018MPBu...45..297S Lightcurve