Orbit and dynamics
The path is an ellipse reaching 0.6 AU from the Sun at perihelion and 1.654 AU at aphelion, a radial span of 1.054 AU.
Applying Kepler's third law to a = 1.127 AU gives an orbital period of 1.20 yr, or about 437 days.
The high eccentricity (0.467) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.
Its inclination of 4.31° keeps it close to the plane of the ecliptic.
By the vis-viva equation its orbital speed rises to 46.6 km/s at perihelion and falls to 16.9 km/s at aphelion.
Because q < 1 AU and Q > 1 AU, this orbit geometrically intersects the region of Earth's orbit.
Size and surface
Neither a measured diameter nor a reliable absolute magnitude is available for 2023 UB, so its physical size remains unconstrained.
Observation record and orbit quality
The current orbit solution is based on 24 observations and has a weighted RMS residual of 0.4133 arcseconds.
Condition code U = 7 signals a poorly constrained orbit, so its future path should be treated as provisional.
About these computed values
Orbital periods, perihelion and aphelion speeds, and diameter estimates on this page are computed by SpaceAtlas from the JPL SBDB orbital elements. They are derived quantities, not values copied from the source catalogue.
Orbital Parameters
Orbit diagram
The Sun sits at the focus (orange). Earth's orbit is the grey circle at 1 AU. The red dot marks the object's position at the catalog epoch.
3D orbit (interactive)
Drag to rotate; scroll or pinch to zoom. The Sun is at the focus (orange), Earth's orbit is the grey ring at 1 AU, and the red dot marks the object's current position.
Close approaches
Predicted close approaches to Earth, from NASA's Center for Near-Earth Object Studies (CNEOS).
| Date (UTC) | Miss distance | Velocity |
|---|---|---|
| 2028-Apr-14 05:30 | 0.254019 AU 38000728 km |
9.08 km/s |
| 2029-Oct-10 02:41 | 0.102304 AU 15304514 km |
11.43 km/s |
| 2034-Mar-21 07:06 | 0.106755 AU 15970271 km |
10.94 km/s |
| 2035-Oct-08 10:57 | 0.214686 AU 32116639 km |
7.93 km/s |
| 2040-Mar-15 00:18 | 0.035009 AU 5237235 km |
14.66 km/s |
| 2041-Oct-28 09:32 | 0.314611 AU 47065099 km |
9.08 km/s |
| 2046-Mar-10 04:24 | 0.035019 AU 5238702 km |
18.30 km/s |
| 2047-Nov-09 15:31 | 0.379553 AU 56780374 km |
10.29 km/s |
| 2052-Mar-04 17:38 | 0.113889 AU 17037511 km |
21.75 km/s |
| 2058-Feb-28 02:46 | 0.240840 AU 36029169 km |
25.35 km/s |
| 2060-Nov-05 01:25 | 0.387413 AU 57956232 km |
29.75 km/s |
| 2064-Feb-23 11:21 | 0.369526 AU 55280251 km |
28.96 km/s |
| 2065-Jun-24 11:59 | 0.415470 AU 62153461 km |
17.24 km/s |
| 2066-Oct-31 08:50 | 0.282875 AU 42317488 km |
26.07 km/s |
| 2071-Jun-12 15:00 | 0.403079 AU 60299694 km |
16.69 km/s |
| 2072-Oct-26 09:16 | 0.220951 AU 33053799 km |
22.93 km/s |
| 2077-Feb-13 04:18 | 0.479746 AU 71768934 km |
10.69 km/s |
| 2077-May-31 16:55 | 0.393230 AU 58826408 km |
15.66 km/s |
| 2078-Oct-22 19:32 | 0.148951 AU 22282764 km |
20.04 km/s |
Distances in astronomical units (AU) and kilometres. Source: NASA/JPL CNEOS Close Approach Data API.
Physical Parameters
Orbit Quality
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