value quality siderealorsynodic author ref method 7.6920 2 Synodic Waszczak 2015AJ....150...75W Lightcurve 7.6937 3 Synodic Benishek 2018MPBu...45...82B Lightcurve 7.6937 3 Synodic Pravec LCDB Lightcurve 7.6942 2 Sidereal Durech 2019A&A...631A...2D Model 7.6943 2 Sidereal Durech 2023A&A...675A..24D Model