103409

103409 is a minor planet that orbits the Sun within the main asteroid belt. The object was first observed by the LINEAR (Lincoln Near-Earth Asteroid Research) program at the Lincoln Laboratory's Experimental Test Site near Socorro, New Mexico, on 10 March 2002. The provisional designation assigned to it upon discovery was 2002 BW14. After its orbit was well established, the asteroid received its permanent number, 103409, by the Minor Planet Center in February 2003.

The orbit of 103409 is typical of inner-belt asteroids. Its semi‑major axis is approximately 2.29 astronomical units, giving the body an orbital period of roughly 3.66 Earth years. The orbit has a moderate eccentricity of about 0.12 and an inclination of roughly 5° relative to the ecliptic. No close approaches to Earth or Mars have been recorded; the asteroid remains safely within the main belt.

Photometric observations suggest that 103409 is an S‑type asteroid, a common taxonomic classification for rocky bodies in the inner belt. Its absolute magnitude is 15.8, corresponding to a diameter estimate of around 5 kilometers, assuming a typical albedo for S‑type asteroids. No official name has been chosen after its numbering, so the asteroid is still referred to by its number and provisional designation in scientific literature.