value quality siderealorsynodic author ref method 7.1860 2 Synodic Erasmus 2020ApJS..247...13E Lightcurve 8.4518 2 Sidereal Durech 2023A&A...675A..24D Model 8.4518 2 Sidereal Hanus 2013A&A...559A.134H Model 8.4524 3- Synodic Stephens 2020MPBu...47..125S Lightcurve 8.4531 3 Synodic Pravec LCDB Lightcurve 8.4630 2 Synodic Waszczak 2015AJ....150...75W Lightcurve