Characterization of Temporarily-Captured Minimoon 2020 CD${}_3$ by Keck Time-resolved Spectrophotometry

Bryce T. Bolin, Christoffer Fremling, Timothy R. Holt +42

We present time-resolved visible spectrophotometry of minimoon 2020 CD${}_3$, the second asteroid known to become temporarily captured by the Earth-Moon system's gravitational field.…