Shape model of 3200 Phaethon from radar and lightcurve observations

We present the shape and rotation state of near-Earth asteroid 3200 Phaethon, the target of JAXA's upcoming DESTINY+ mission (Arai et al. 2018). This shape model was derived using Arecibo and Goldstone radar data from Phaethon's 2007 and 2017 close approaches, and lightcurves from many apparitions. Phaethon is roughly spheroidal with an equatorial ridge. It has an equivalent spherical diameter of about 5.5 kilometers, slightly larger than previously estimated.