Where is it now
- Distance from Sun
- 0.772 AU
- True anomaly
- 290.79°
- Distance from Earth
- 0.996 AU
- As of
- 20 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 50m 12s
- Declination
- +03° 52′ 23″
- Constellation
- Sextans
- Distance from Earth
- 1 AU
- Elongation from the Sun
- 45.47° — 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
- 0.887 AU
- Eccentricity
- 0.2375
- Inclination
- 4.77°
- Orbital period
- 305.4 days
- Perihelion
- 0.677 AU
- Aphelion
- 1.098 AU
- Longitude of ascending node
- 212.47°
- Argument of periapsis
- 311.31°
- Epoch · J2000
- 2461200.5
- Orbit class · ATE
- Aten
- Earth MOID · 0.3 LD
- 0.0007 AU
- Tisserand (Jupiter)
- 6.663
Orbit quality
Orbit poorly determined (uncertainty code 6).
- Observations used
- 39
- Data arc
- 7 days
- First observed
- 19 October 2025
- Last observed
- 26 October 2025
- Residual RMS
- 0.24 ″
- Solution · Otto Matic
- 14 November 2025
Visual & observation
- Absolute magnitude (H)
- 28.54
Discovery & classification
Listed by JPL impact monitoring; see the Sentry table for current probabilities.
Close approaches 45 on record
Top-down view of the ecliptic, Earth at the centre, for the 2030-10-05 20:50 UTC close approach of 2025 UD3. Catalogue miss distance 32.7 LD · 1.26 × 10⁷ km. The curve is the geocentric path from 2030-10-02 to 2030-10-08, 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 |
|---|---|---|---|---|
| 2030-10-05 20:50:00 | Earth | 0.0841 AU | 32.7 LD | 5 km/s |
| 2034-07-06 15:57:00 | Venus | 0.0258 AU | 10.0 LD | 7.6 km/s |
| 2035-09-03 01:14:00 | Earth | 0.1124 AU | 43.7 LD | 5 km/s |
| 2040-07-27 15:38:00 | Earth | 0.0909 AU | 35.4 LD | 5 km/s |
| 2043-07-17 10:51:00 | Venus | 0.0962 AU | 37.5 LD | 9.4 km/s |
| 2045-07-21 18:06:00 | Earth | 0.1052 AU | 40.9 LD | 7.9 km/s |
| 2046-03-22 02:27:00 | Venus | 0.1243 AU | 48.4 LD | 13.1 km/s |
| 2050-07-24 20:35:00 | Earth | 0.1973 AU | 76.8 LD | 11.4 km/s |
| 2064-06-14 23:09:00 | Venus | 0.1191 AU | 46.4 LD | 11.1 km/s |
| 2066-10-25 20:53:00 | Earth | 0.1233 AU | 48.0 LD | 10 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