| Minorplanet: | yes |
| 2020 JJ | |
| Background: |
|
| Discovery Ref: |   |
| Discovered: | 4 May 2020 |
| Mpc Name: | 2020 JJ |
| Orbit Ref: |   |
| Epoch: | 31 May 2020 (JD 2459000.5) |
| Uncertainty: | 7 |
| Observation Arc: | 0 day |
| Perihelion: | 0.8708 AU |
| Semimajor: | 1.5067 AU |
| Eccentricity: | 0.4220 |
| Period: | 1.85 yr (675 d) |
| Mean Motion: | / day |
| Inclination: | 11.192° |
| Asc Node: | 44.188° |
| Arg Peri: | 237.33° |
| Moid: | AU (526 km) |
| Abs Magnitude: | 30.0 |
is a tiny near-Earth asteroid of the Apollo group that passed 7000km (4,000miles) from the surface of Earth on 4 May 2020. It is estimated to be between 3 and 6 meters in diameter.[1]
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.
On 4 May 2020, it passed 7,000 km above the southern Pacific Ocean.[2] It was the closest since on 31 October 2019.[1]