21207

21207 is a minor planet in the outer region of the asteroid belt, orbiting the Sun between Mars and Jupiter. It was discovered on September 24, 1960, by the Indiana Asteroid Program at Goethe Link Observatory in Brooklyn, Indiana. The asteroid is approximately 15 kilometers in diameter and has a rotation period of about 5.5 hours. It belongs to the Flora family of asteroids, which are thought to have originated from a single parent body that was shattered by an impact.

The spectral type of 21207 is S-type, indicating that it is composed primarily of silicate minerals. This classification is consistent with the composition of the Flora family asteroids. The asteroid's orbit is relatively stable, with an eccentricity of 0.13 and an inclination of 3.4 degrees relative to the ecliptic plane. Its semi-major axis is approximately 2.4 astronomical units (AU), placing it within the main asteroid belt.

21207 has not been visited by any spacecraft, and its surface features are not well-known. However, its classification and orbital characteristics provide valuable insights into the dynamics and composition of the asteroid belt. The study of minor planets like 21207 contributes to our understanding of the early solar system and the processes that shaped it.