2016 UO41 is an asteroid in the Apollo orbit class. Its orbit takes it from 0.58 AU to 1.43 AU from the Sun; one orbit takes 368.7 days. Orbit from the JPL solution of 15 April 2021.
Where is it now
- Distance from Sun
- 0.923 AU
- True anomaly
- 104.24°
- Distance from Earth
- 0.537 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
- 19h 14m 33s
- Declination
- -14° 53′ 11″
- Constellation
- Sagittarius
- Distance from Earth
- 0.54 AU
- Elongation from the Sun
- 66.9° — 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
- 1.006 AU
- Eccentricity
- 0.4213
- Inclination
- 9.46°
- Orbital period
- 368.7 days
- Perihelion
- 0.582 AU
- Aphelion
- 1.43 AU
- Longitude of ascending node
- 216.12°
- Argument of periapsis
- 48.6°
- Epoch · J2000
- 2461200.5
- Orbit class · APO
- Apollo
- Earth MOID · 18.3 LD
- 0.047 AU
- Tisserand (Jupiter)
- 5.958
Orbit quality
Orbit very well determined (uncertainty code 2).
- Observations used
- 45
- Data arc
- 730 days
- First observed
- 26 October 2016
- Last observed
- 26 October 2018
- Residual RMS
- 0.6 ″
- Solution · Otto Matic
- 15 April 2021
Visual & observation
- Absolute magnitude (H)
- 24.4
Discovery & classification
Close approaches 182 on record
Top-down view of the ecliptic, Earth at the centre, for the 2089-02-04 23:59 UTC close approach of 2016 UO41. Catalogue miss distance 179.1 LD · 6.88 × 10⁷ km. The curve is the geocentric path from 2089-02-01 to 2089-02-07, 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 |
|---|---|---|---|---|
| 2029-10-21 17:13:00 | Venus | 0.1484 AU | 57.7 LD | 15.3 km/s |
| 2032-09-19 05:58:00 | Venus | 0.1494 AU | 58.1 LD | 13.5 km/s |
| 2046-10-20 11:16:00 | Venus | 0.0717 AU | 27.9 LD | 14.2 km/s |
| 2072-01-09 03:11:00 | Venus | 0.0691 AU | 26.9 LD | 14.4 km/s |
| 2086-02-21 18:02:00 | Venus | 0.1323 AU | 51.5 LD | 19.7 km/s |
| 2089-02-04 23:59:00 | Earth | 0.4601 AU | 179.1 LD | 27.3 km/s |
| 2090-02-07 20:15:00 | Earth | 0.4075 AU | 158.6 LD | 25.5 km/s |
| 2091-02-10 16:40:00 | Earth | 0.3555 AU | 138.4 LD | 23.8 km/s |
| 2092-02-13 14:10:00 | Earth | 0.3046 AU | 118.5 LD | 22 km/s |
| 2093-02-15 10:54:00 | Earth | 0.256 AU | 99.6 LD | 20.3 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