Radar images show that the asteroid has two components separated by as much as one kilometer.
Astronomers are calling for additional observations while DP107 is still close to Earth. At 14th magnitude, the asteroid is visible in 8 to 10 inch amateur telescopes with CCD cameras. Doppler and Doppler-only radar observations on Sept. 22 and 23 strongly suggest that 2000 DP107 is a binary system. The images show separations up to at least 1 km between the components, which have different sizes and rotation states. Additional radar observations are planned at Arecibo.