2020 CW

 is a tiny near-Earth asteroid of the Apollo group, approximately 1 m in diameter. It was first observed by the Mount Lemmon Survey on 1 February 2020, when it passed Earth very closely at a nominal distance of only 0.000105 AU. The object's orbital elements remain highly uncertain.

Description
passed within 9730 mi of the Earth on 1 February 2020, with a fly-by speed of 13.2 mi per second. The household-appliance-sized asteroid passed within the orbit of satellites in the geostationary ring at 22300 mi above Earth's equator. At the time, it was the closest approach in the year 2020. Since then, made a closer approach on 4 May 2020.

The asteroid was first observed 1 February 2020 by the Mount Lemmon Survey at Mount Lemmon Observatory in the Santa Catalina Mountains northeast of Tucson, Arizona. The next encounter closer than the Moon is predicted to occur 5 February 2029 at a distance of 11830 mi or more.