2020 JJ

 is a tiny near-Earth asteroid of the Apollo group that passed 7000 km from the surface of Earth on 4 May 2020. It is estimated to be between 3 and 6 meters in diameter.

Orbit and classification
2020 JJ orbits the Sun at a distance of 0.9–2.1 AU once every 1 years and 10 months (675 days; semi-major axis of 1.51 AU). Its orbit has an eccentricity of 0.42 and an inclination of 11° with respect to the ecliptic.

Flyby
On 4 May 2020, it passed 7,000 km above the southern Pacific Ocean. It was the closest since on 31 October 2019.