2020 AL3 is an asteroid in the Aten orbit class. Its orbit takes it from 0.59 AU to 1.37 AU from the Sun; one orbit takes 354.9 days. Orbit from the JPL solution of 15 April 2021.
Where is it now
- Distance from Sun
- 1.006 AU
- True anomaly
- 243.38°
- Distance from Earth
- 1.184 AU
- As of
- 2 November 2026
Two-body Kepler propagation — accurate to ~0.1% for major planets over decades, less so for highly-perturbed bodies. Use JPL Horizons for high precision.
In the sky
- Right ascension
- 11h 10m 43s
- Declination
- +05° 11′ 21″
- Constellation
- Leo
- Distance from Earth
- 1.18 AU
- Elongation from the Sun
- 54.13° — near the Sun — look low at dusk or dawn
Visible from both hemispheres.
From your location
See how high it is right now, whether it is up after civil twilight, and when it rises and sets where you are.
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Two-body approximation, good to about a degree for the planets — enough to find the constellation and know whether it is up.
Orbital elements
- Semi-major axis
- 0.981 AU
- Eccentricity
- 0.394
- Inclination
- 8.48°
- Orbital period
- 354.9 days
- Perihelion
- 0.595 AU
- Aphelion
- 1.368 AU
- Longitude of ascending node
- 114.11°
- Argument of periapsis
- 115.51°
- Epoch · J2000
- 2461200.5
- Orbit class · ATE
- Aten
- Earth MOID · 1.8 LD
- 0.0046 AU
- Tisserand (Jupiter)
- 6.093
Orbit quality
Orbit poorly determined (uncertainty code 7).
- Observations used
- 52
- Data arc
- 4 days
- First observed
- 14 January 2020
- Last observed
- 18 January 2020
- Residual RMS
- 0.5 ″
- Solution · Otto Matic
- 15 April 2021
Visual & observation
- Absolute magnitude (H)
- 26.2
Discovery & classification
Close approaches 31 on record
Top-down view of the ecliptic, Earth at the centre, for the 2043-09-20 19:25 UTC close approach of 2020 AL3. Catalogue miss distance 137.5 LD · 5.29 × 10⁷ km. The curve is the geocentric path from 2043-09-17 to 2043-09-23, with a mark at UTC midnights and an arrow for the direction of motion. The circle is the Moon’s mean orbit; the Moon is plotted at closest approach. A ray shows the Sun’s direction. The labelled distance is the full separation. The drawn radius is the part that lies in the ecliptic plane. At closest approach the object is south of the ecliptic. The path is a geocentric ecliptic ephemeris from JPL Horizons. The inset is a heliocentric view and is approximate.
| When (UTC) | Body | Distance | Lunar distances | Relative speed |
|---|---|---|---|---|
| 2040-07-20 00:33:00 | Venus | 0.1155 AU | 45.0 LD | 18.1 km/s |
| 2042-09-02 12:43:00 | Venus | 0.1314 AU | 51.2 LD | 19 km/s |
| 2043-09-20 19:25:00 | Earth | 0.3534 AU | 137.5 LD | 22.8 km/s |
| 2044-09-12 08:46:00 | Earth | 0.2018 AU | 78.5 LD | 17.7 km/s |
| 2045-09-04 16:48:00 | Earth | 0.1139 AU | 44.3 LD | 12.7 km/s |
| 2054-01-17 12:26:00 | Earth | 0.1051 AU | 40.9 LD | 10.1 km/s |
| 2055-01-14 13:50:00 | Earth | 0.0682 AU | 26.5 LD | 14.9 km/s |
| 2056-01-08 05:00:00 | Earth | 0.2448 AU | 95.3 LD | 20.3 km/s |
| 2056-12-31 03:45:00 | Earth | 0.4187 AU | 162.9 LD | 25.7 km/s |
| 2059-01-05 17:48:00 | Venus | 0.0624 AU | 24.3 LD | 15.3 km/s |
Next ten from today. 1 lunar distance = 384,400 km. Source: JPL close-approach data.
Sources
- visual properties: JPL SBDB (lookup)
- orbital elements: JPL SBDB