139141

139141 is a minor planet in the outer region of the asteroid belt, orbiting the Sun between Mars and Jupiter. It was discovered on October 2, 1999, by astronomers at the Lincoln Near-Earth Asteroid Research (LINEAR) project. The asteroid is classified as a main-belt asteroid, with a semi-major axis of approximately 3.1 astronomical units (AU), a perihelion distance of 2.7 AU, and an aphelion distance of 3.5 AU. Its orbital period is about 5.5 Earth years.

The size of 139141 is estimated to be around 4.5 kilometers in diameter, based on its absolute magnitude of 15.5. The asteroid has a relatively low albedo, indicating a dark surface composition. Its rotation period is approximately 12.5 hours.

139141 has not been observed to have any notable characteristics or features that distinguish it from other main-belt asteroids. It orbits the Sun in a stable, nearly circular path, and its orbit does not intersect with that of any other known celestial bodies. The asteroid's classification and orbital parameters suggest that it is a typical member of the outer asteroid belt, composed of rocky and metallic materials.