215964

215964 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, 1999, by astronomers at the Lowell Observatory Near-Earth-Object Search (LONEOS) in Flagstaff, Arizona. 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 absolute magnitude of 215964 is 15.5, which corresponds to a diameter of roughly 2.5 kilometers, assuming an albedo of 0.15. The asteroid has a relatively low eccentricity of 0.12, indicating a nearly circular orbit. Its rotation period is estimated to be around 5.5 hours.

215964 has not been named or officially designated by the International Astronomical Union (IAU). As of now, it remains an unnamed minor planet, cataloged under its provisional designation. The asteroid's spectral type is not yet determined, but it is likely to be a common S-type asteroid, which are composed of silicate materials and nickel-iron.

The discovery of 215964 contributes to our understanding of the asteroid belt and the dynamics of the solar system. Ongoing observations and studies will provide more insights into its physical properties, orbital characteristics, and potential implications for planetary defense and space exploration.