2020 JJ
2020 JJ is a tiny near-Earth asteroid of the Apollo group that passed 7,000 kilometres (4,300 mi) from the surface of Earth on 4 May 2020. It is estimated to be between 3 and 6 meters in diameter.
Orbit of 2020 JJ | |
| Discovery | |
|---|---|
| Discovered by | Mt. Lemmon Survey |
| Discovery site | Mt. Lemmon Obs. |
| Discovery date | 4 May 2020 |
| Designations | |
MPC designation | 2020 JJ |
Minor planet category | Apollo · NEO |
| Orbital characteristics | |
| Epoch 31 May 2020 (JD 2459000.5) | |
| Uncertainty parameter 7 | |
| Observation arc | 0 day |
| Aphelion | 2.1425 AU |
| Perihelion | 0.8708 AU |
Semi-major axis | 1.5067 AU |
| Eccentricity | 0.4220 |
Orbital period (sidereal) | 1.85 yr (675 d) |
Mean anomaly | 350.73° |
Mean motion | 0° 31m 58.44s / day |
| Inclination | 11.192° |
Longitude of ascending node | 44.188° |
| 237.33° | |
| Earth MOID | 3.51662×10−6 AU (526 km) |
| Physical characteristics | |
Mean diameter | 2.7–6 m |
| 29.97±0.09 · 30.0 | |
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