2003 UO25 is an asteroid in the Apollo orbit class. Its orbit takes it from 0.78 AU to 1.25 AU from the Sun; one orbit takes 374.4 days. Orbit from the JPL solution of 14 April 2021.
Where is it now
- Distance from Sun
- 0.931 AU
- True anomaly
- 278.76°
- Distance from Earth
- 1.65 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
- 12h 35m 55s
- Declination
- -11° 17′ 28″
- Constellation
- Virgo
- Distance from Earth
- 1.65 AU
- Elongation from the Sun
- 29.76° — 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
- 1.017 AU
- Eccentricity
- 0.2292
- Inclination
- 15.47°
- Orbital period
- 374.4 days
- Perihelion
- 0.784 AU
- Aphelion
- 1.25 AU
- Longitude of ascending node
- 211.84°
- Argument of periapsis
- 28.61°
- Epoch · J2000
- 2461200.5
- Orbit class · APO
- Apollo
- Earth MOID · 64.0 LD
- 0.1644 AU
- Tisserand (Jupiter)
- 5.947
Orbit quality
Orbit very well determined (uncertainty code 2).
- Observations used
- 56
- Data arc
- 735 days
- First observed
- 24 October 2003
- Last observed
- 28 October 2005
- Residual RMS
- 0.67 ″
- Solution · Otto Matic
- 14 April 2021
Visual & observation
- Absolute magnitude (H)
- 22.6
Discovery & classification
Close approaches 124 on record
Top-down view of the ecliptic, Earth at the centre, for the 2037-02-04 09:03 UTC close approach of 2003 UO25. Catalogue miss distance 181.4 LD · 6.97 × 10⁷ km. The curve is the geocentric path from 2037-02-01 to 2037-02-07, 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 |
|---|---|---|---|---|
| 2037-02-04 09:03:00 | Earth | 0.4662 AU | 181.4 LD | 20.3 km/s |
| 2038-02-15 16:07:00 | Earth | 0.3357 AU | 130.6 LD | 15.9 km/s |
| 2039-03-03 10:17:00 | Earth | 0.2317 AU | 90.2 LD | 12.5 km/s |
| 2040-03-24 02:55:00 | Earth | 0.1837 AU | 71.5 LD | 11.1 km/s |
| 2040-12-20 22:39:00 | Earth | 0.3318 AU | 129.1 LD | 7.8 km/s |
| 2041-04-16 20:38:00 | Earth | 0.1976 AU | 76.9 LD | 11.2 km/s |
| 2041-11-28 06:36:00 | Earth | 0.3191 AU | 124.2 LD | 9.1 km/s |
| 2042-05-10 22:50:00 | Earth | 0.2403 AU | 93.5 LD | 11.4 km/s |
| 2042-11-11 11:07:00 | Earth | 0.2861 AU | 111.3 LD | 9.5 km/s |
| 2043-06-05 19:37:00 | Earth | 0.2828 AU | 110.1 LD | 10.8 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