value quality siderealorsynodic author ref method 5.4756 2 Synodic Pal 2020ApJS..247...26P Lightcurve 5.4760 2 Synodic Waszczak 2015AJ....150...75W Lightcurve 5.4767 2 Sidereal Durech 2020A&A...643A..59D Model 5.4770 3 Synodic Pravec LCDB Lightcurve