25381

25381 is a minor planet in the outer region of the asteroid belt, orbiting the Sun between Mars and Jupiter. It was discovered on 29 September 1999 by the Lowell Observatory Near-Earth-Object Search (LONEOS) at Anderson Mesa Station. The asteroid is classified as a main-belt asteroid, with a semi-major axis of approximately 3.1 astronomical units (AU). Its orbital period is about 5.5 Earth years, and it has an eccentricity of 0.12, indicating a relatively circular orbit.

25381 has a diameter of around 10 kilometers, making it a small asteroid. Its spectral type is X, which is characteristic of primitive, carbonaceous asteroids. These asteroids are believed to be remnants from the early solar system and may contain organic compounds and water, making them of interest to scientists studying the origins of life.

The asteroid's rotation period is approximately 5.4 hours, and its absolute magnitude is 14.5. It has a low albedo, meaning it reflects only a small fraction of the sunlight that hits it, which is typical for carbonaceous asteroids. The asteroid's name is not yet officially assigned, and it is currently designated by its provisional designation (25381).

25381 is part of the Flora family of asteroids, which is one of the largest families in the asteroid belt. The Flora family is believed to have formed from a collisional event that occurred about 100 million years ago. The asteroids in this family share similar orbital elements and spectral characteristics, indicating a common origin.