2024 UN is an asteroid in the Apollo orbit class. Its orbit takes it from 0.84 AU to 1.24 AU from the Sun; one orbit takes 386.7 days. Orbit from the JPL solution of 17 November 2024.
Where is it now
- Distance from Sun
- 0.91 AU
- True anomaly
- 58.89°
- Distance from Earth
- 0.736 AU
- As of
- 4 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
- 19h 03m 01s
- Declination
- -38° 17′ 46″
- Constellation
- Corona Australis
- Distance from Earth
- 0.74 AU
- Elongation from the Sun
- 61.52° — well clear of the Sun
Favours the southern hemisphere; low or below the horizon from far north.
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
- 1.039 AU
- Eccentricity
- 0.1922
- Inclination
- 24.48°
- Orbital period
- 386.7 days
- Perihelion
- 0.839 AU
- Aphelion
- 1.238 AU
- Longitude of ascending node
- 27.76°
- Argument of periapsis
- 269.44°
- Epoch · J2000
- 2461200.5
- Orbit class · APO
- Apollo
- Earth MOID · 1.8 LD
- 0.0047 AU
- Tisserand (Jupiter)
- 5.808
Orbit quality
Orbit poorly determined (uncertainty code 7).
- Observations used
- 70
- Data arc
- 10 days
- First observed
- 20 October 2024
- Last observed
- 30 October 2024
- Residual RMS
- 0.48 ″
- Solution · Otto Matic
- 17 November 2024
Visual & observation
- Absolute magnitude (H)
- 26.62
Discovery & classification
Listed by JPL impact monitoring; see the Sentry table for current probabilities.
Close approaches 38 on record
Top-down view of the ecliptic, Earth at the centre, for the 2039-04-01 00:38 UTC close approach of 2024 UN. Catalogue miss distance 167.6 LD · 6.44 × 10⁷ km. The curve is the geocentric path from 2039-03-29 to 2039-04-04, 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. 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 |
|---|---|---|---|---|
| 2039-04-01 00:38:00 | Earth | 0.4308 AU | 167.6 LD | 23 km/s |
| 2040-04-14 13:01:00 | Earth | 0.0761 AU | 29.6 LD | 15.2 km/s |
| 2041-04-26 07:55:00 | Earth | 0.2797 AU | 108.8 LD | 12.7 km/s |
| 2041-10-17 10:39:00 | Earth | 0.3925 AU | 152.7 LD | 13.4 km/s |
| 2042-10-20 01:18:00 | Earth | 0.0386 AU | 15.0 LD | 13.6 km/s |
| 2043-11-01 15:46:00 | Earth | 0.3118 AU | 121.4 LD | 20.2 km/s |
| 2058-04-08 09:48:00 | Earth | 0.2428 AU | 94.5 LD | 18.5 km/s |
| 2059-04-21 23:11:00 | Earth | 0.1065 AU | 41.4 LD | 13 km/s |
| 2060-04-24 15:02:00 | Earth | 0.4545 AU | 176.9 LD | 14.1 km/s |
| 2060-10-15 07:43:00 | Earth | 0.2187 AU | 85.1 LD | 12.6 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