Radar data of comet P/2016 BA14 taken over three days (March 21—23, 2016), when the comet was between 2.5 million miles and 2.2 million miles (4.1 million kilometers and 3.6 million kilometers) from Earth.
Radar images and data from the flyby indicated that the comet is about 3,000 feet (1 kilometer) in diameter.
Image credit: NASA/JPL-Caltech/GSSR
