Discovery[1] | |
---|---|
Discovered by | MLS |
Discovery site | Mount Lemmon Obs. |
Discovery date | 4 January 2020 |
Designations | |
2020 AP1 | |
NEO–Apollo [2] | |
Orbital characteristics[2] | |
Epoch 2020-May-31 (JD 2459000.5) | |
Uncertainty parameter 7 | |
Observation arc | 1 day |
Aphelion | 2.196 AU (328,500,000 km) (Q) |
Perihelion | 0.9810 AU (146,760,000 km) (q) |
1.588 AU (237,600,000 km) (a) | |
Eccentricity | 0.3824 (e) |
2.002 yr | |
77.83° (M) | |
Inclination | 2.256° (i) |
101.2° (Ω) | |
25 December 2021 | |
349.7° (ω) | |
Earth MOID | 0.0014 AU (210,000 km; 0.54 LD) |
Jupiter MOID | 3.0 AU (450,000,000 km) |
Physical characteristics | |
3–7 meters (CNEOS) | |
29.6[2] | |
2020 AP1 is an Apollo near-Earth object roughly 5 meters (20 feet) in diameter. On 2 January 2020 it passed 0.00218 AU (326 thousand km; 0.85 LD) from Earth. With a short 1-day observation arc it was roughly expected to pass about 0.01 AU (1.5 million km; 3.9 LD) from Earth on 7 January 2022, but with an uncertainty of ±8 days for the close approach date it could have passed significantly closer or further.
Date | JPL SBDB nominal geocentric distance |
uncertainty region (3-sigma) |
---|---|---|
2022-01-07.7 ± 8.3 days | 1.7 million km | ± 2.5 million km[3] |