value quality siderealorsynodic author ref method 24.0000 2- Synodic Behrend LCDB Lightcurve 42.9131 2 Synodic Pal 2020ApJS..247...26P Lightcurve 86.8950 2 Synodic Waszczak 2015AJ....150...75W Lightcurve 87.1400 2 Sidereal Durech 2020A&A...643A..59D Model