Phaethon shape model from radar and lightcurve data

Sean Marshall
Arecibo Observatory & University of Central Florida

I will present the shape and rotation state of near-Earth asteroid 3200 Phaethon, the target of the upcoming DESTINY+ mission. Phaethon passed 0.07 au from Earth on December 16, 2017, which was its closest approach to Earth since its discovery. This shape model was derived using Arecibo and Goldstone radar data from Phaethon's 2007 and 2017 apparitions, and lightcurves from many apparitions. Phaethon is roughly spheroidal with an equatorial ridge, similar to Bennu and Ryugu. Phaethon has a maximum diameter of about 6 kilometers, slightly larger than previously estimated.

Place: 2F Conf. room（1236） / 研究管理棟２階会議場（1236号室）

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