2020 YN3 is an asteroid in the Aten orbit class. Its orbit takes it from 0.67 AU to 1.29 AU from the Sun; one orbit takes 354.1 days. Orbit from the JPL solution of 16 April 2026.
Where is it now
- Distance from Sun
- 1.081 AU
- True anomaly
- 125.7°
- Distance from Earth
- 1.184 AU
- As of
- 24 October 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
- 10h 19m 53s
- Declination
- +10° 47′ 34″
- Constellation
- Leo
- Distance from Earth
- 1.18 AU
- Elongation from the Sun
- 58.87° — 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
- 0.98 AU
- Eccentricity
- 0.3176
- Inclination
- 3.69°
- Orbital period
- 354.1 days
- Perihelion
- 0.668 AU
- Aphelion
- 1.291 AU
- Longitude of ascending node
- 287.37°
- Argument of periapsis
- 47.66°
- Epoch · J2000
- 2461200.5
- Orbit class · ATE
- Aten
- Earth MOID · 9.5 LD
- 0.0245 AU
- Tisserand (Jupiter)
- 6.133
Orbit quality
Orbit very well determined (uncertainty code 1).
- Observations used
- 119
- Data arc
- 6.23 years
- First observed
- 22 January 2020
- Last observed
- 16 April 2026
- Residual RMS
- 0.63 ″
- Solution · Otto Matic
- 16 April 2026
Visual & observation
- Absolute magnitude (H)
- 23.38
Discovery & classification
Close approaches 77 on record
Top-down view of the ecliptic, Earth at the centre, for the 2027-05-02 05:02 UTC close approach of 2020 YN3. Catalogue miss distance 29.0 LD · 1.12 × 10⁷ km. The curve is the geocentric path from 2027-04-29 to 2027-05-05, 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 |
|---|---|---|---|---|
| 2027-05-02 05:02:00 | Earth | 0.0746 AU | 29.0 LD | 11.3 km/s |
| 2030-07-09 11:52:00 | Venus | 0.1388 AU | 54.0 LD | 14.5 km/s |
| 2041-12-28 06:16:00 | Venus | 0.084 AU | 32.7 LD | 13.3 km/s |
| 2048-10-10 15:15:00 | Venus | 0.0202 AU | 7.8 LD | 9.3 km/s |
| 2050-12-22 01:28:00 | Earth | 0.1433 AU | 55.8 LD | 14.3 km/s |
| 2051-12-17 11:29:00 | Earth | 0.0557 AU | 21.7 LD | 8.5 km/s |
| 2055-08-11 02:06:00 | Venus | 0.0891 AU | 34.7 LD | 7.4 km/s |
| 2057-04-27 00:45:00 | Earth | 0.1644 AU | 64.0 LD | 6.1 km/s |
| 2058-05-02 09:18:00 | Earth | 0.0677 AU | 26.4 LD | 10.9 km/s |
| 2062-06-20 00:05:00 | Venus | 0.0892 AU | 34.7 LD | 7.1 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