value quality siderealorsynodic author ref method 5.3670 2 Synodic Waszczak 2015AJ....150...75W Lightcurve 5.3680 2 Synodic Waszczak 2015AJ....150...75W Lightcurve 5.3700 3 Synodic Binzel 1992Icar...99..225B Lightcurve