value quality siderealorsynodic author ref method 30.5700 1+ Synodic Behrend LCDB Lightcurve 30.5730 3 Synodic Behrend LCDB Lightcurve 30.6150 2 Sidereal Durech 2023A&A...675A..24D Model 30.6170 2 Sidereal Durech 2018A&A...620A..91D Model 30.6180 2 Sidereal Durech 2020A&A...643A..59D Model 30.6811 2 Synodic Pal 2020ApJS..247...26P Lightcurve