Asteroid 2016 HO3 is a small near-Earth asteroid that was discovered in April 2016. It is classified as a quasi-satellite of Earth, meaning it orbits the Sun in a way that keeps it close to our planet. Its size is estimated to be between 40 and 100 meters in diameter. This asteroid has a unique orbit that allows it to remain in a stable position relative to Earth for long periods. It completes one orbit around the Sun approximately every 365 days, similar to Earth's orbital period, but it also moves in a looping path that keeps it nearby.