400733

400733 is a minor planet in the asteroid belt, orbiting the Sun between Mars and Jupiter. It was discovered on October 10, 1999, by the Lincoln Near-Earth Asteroid Research (LINEAR) project. The asteroid is classified as a main-belt asteroid, with a semi-major axis of approximately 2.7 astronomical units (AU). Its orbital period is about 4.4 Earth years. The asteroid has a diameter of roughly 1.5 kilometers, based on its absolute magnitude of 16.5. The surface composition of 400733 is not well-determined, but it is likely to be similar to other asteroids in the main belt, composed primarily of rocky and metallic materials. The asteroid's rotation period is estimated to be around 5.5 hours. 400733 does not pose any significant threat to Earth, as its orbit does not bring it close to our planet. The asteroid is named after the discoverer's institution, the Massachusetts Institute of Technology (MIT) Lincoln Laboratory.