2024 UY9 is an asteroid in the Apollo orbit class. Its orbit takes it from 0.92 AU to 1.11 AU from the Sun; one orbit takes 372.9 days. Orbit from the JPL solution of 31 October 2024.
Where is it now
- Distance from Sun
- 1.105 AU
- True anomaly
- 199.05°
- Distance from Earth
- 0.256 AU
- As of
- 3 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
- 22h 01m 22s
- Declination
- -02° 11′ 54″
- Constellation
- Aquarius
- Distance from Earth
- 0.26 AU
- Elongation from the Sun
- 109.66° — well clear of the Sun
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
- 1.014 AU
- Eccentricity
- 0.0967
- Inclination
- 13.24°
- Orbital period
- 372.9 days
- Perihelion
- 0.916 AU
- Aphelion
- 1.112 AU
- Longitude of ascending node
- 218.41°
- Argument of periapsis
- 331.2°
- Epoch · J2000
- 2460612.5
- Orbit class · APO
- Apollo
- Earth MOID · 31.8 LD
- 0.0817 AU
- Tisserand (Jupiter)
- 5.987
Orbit quality
Orbit very uncertain — the object may be effectively lost (uncertainty code 8).
- Observations used
- 17
- Data arc
- 4 days
- First observed
- 27 October 2024
- Last observed
- 31 October 2024
- Residual RMS
- 0.76 ″
- Solution · Otto Matic
- 31 October 2024
Visual & observation
- Absolute magnitude (H)
- 26.03
Discovery & classification
Close approaches 13 on record
Top-down view of the ecliptic, Earth at the centre, for the 2027-05-27 07:30 UTC close approach of 2024 UY9. Catalogue miss distance 62.6 LD · 2.41 × 10⁷ km. The curve is the geocentric path from 2027-05-24 to 2027-05-30, 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 north 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 |
|---|---|---|---|---|
| 2027-05-27 07:30:00 | Earth | 0.1609 AU | 62.6 LD | 8.7 km/s |
| 2028-06-14 18:41:00 | Earth | 0.2688 AU | 104.6 LD | 10.8 km/s |
| 2029-07-02 00:08:00 | Earth | 0.3863 AU | 150.3 LD | 13.6 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