At the time, astronomers thought that 1998 KY26 was about 30 meters in diameter, and rotating every 10.7 minutes. While our knowledge of larger asteroids has grown because we've sampled them and they're easier to observe, these smaller asteroids are more challenging to study. These computer 3D models of 1998 KY26 were generated from data available in 1998. The research is titled "Hayabusa2 extended mission target asteroid 1998 KY26 is smaller and rotating faster than previously known," and it appears in Nature Communications. There's no doubt that Hayabusa 2 can still visit KY26.