value quality siderealorsynodic author ref method 6.0040 2 Synodic Waszczak 2015AJ....150...75W Lightcurve 6.0040 2 Synodic Waszczak 2015AJ....150...75W Lightcurve 6.0045 2 Sidereal Durech 2020A&A...643A..59D Model