1999 JF43 is an asteroid that belongs to the Apollo group of near-Earth objects. It was discovered on May 6, 1999, and has an estimated diameter of about 1.2 kilometers. Its orbit brings it close to Earth, making it an object of interest for astronomers and planetary defense studies. The asteroid orbits the Sun every 1.3 years and has a highly elliptical path. Due to its size and proximity, 1999 JF43 is monitored for any potential future close approaches to Earth, although it is not currently considered a threat.