17919

17919 is a minor planet in the asteroid belt, located between the orbits of Mars and Jupiter. It was discovered on March 24, 1999, by the Lincoln Near-Earth Asteroid Research (LINEAR) project, a collaborative effort between the United States Air Force, NASA, and the Massachusetts Institute of Technology. The asteroid is part of the Flora family, a group of asteroids that share similar orbital characteristics and are believed to have originated from a single parent body.

17919 has an estimated diameter of approximately 4.5 kilometers. Its orbit is relatively stable, with a semi-major axis of about 2.2 astronomical units (AU) and an eccentricity of around 0.15. The asteroid completes one orbit around the Sun every 3.3 years. The orbital inclination of 17919 is about 5.5 degrees, which is typical for asteroids in the Flora family.

The spectral classification of 17919 is S-type, indicating that it has a stony composition. This classification is based on its reflectance spectrum, which shows characteristics similar to other S-type asteroids. The surface of 17919 is likely composed of silicate minerals, which are common in the inner solar system.

As of the latest available data, 17919 has not been observed to have any known moons or companions. Its rotation period is not well-determined, but it is estimated to be around 5.5 hours. The asteroid's albedo, or reflectivity, is approximately 0.25, which is typical for S-type asteroids.

17919 is not considered a near-Earth object (NEO) because its orbit does not bring it close to Earth's orbit. However, its discovery and ongoing study contribute to our understanding of the asteroid belt and the formation of the solar system. The LINEAR project, which discovered 17919, continues to search for and track asteroids, providing valuable data for astronomers and planetary scientists.