Orbit and dynamics
Between its closest point (0.742 AU) and its farthest (1.734 AU), the heliocentric distance changes by 0.992 AU over every revolution.
One full revolution takes 1.38 yr (503 days), computed from the semi-major axis of 1.238 AU.
The high eccentricity (0.401) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.
A steep inclination of 50.74° carries it well above and below the ecliptic plane.
By the vis-viva equation its orbital speed rises to 40.9 km/s at perihelion and falls to 17.5 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
No direct size measurement is available; from an absolute magnitude of H = 19.25 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.5 km.
Observation record and orbit quality
Astrometry from 190 individual observations underpins this orbit; the fit leaves an RMS residual of 0.5355 arcseconds.
Condition code U = 0 means the orbit is very well determined, leaving only a small uncertainty in the future ephemeris.
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 |
|---|---|---|
| 2029-May-02 12:43 | 0.158180 AU 23663422 km |
28.38 km/s |
| 2040-May-05 10:30 | 0.135145 AU 20217471 km |
26.68 km/s |
| 2044-Oct-30 08:46 | 0.130222 AU 19480909 km |
27.74 km/s |
| 2051-May-08 15:49 | 0.196668 AU 29421068 km |
25.40 km/s |
| 2055-Nov-05 06:36 | 0.045727 AU 6840601 km |
29.10 km/s |
| 2066-Nov-10 08:44 | 0.130179 AU 19474494 km |
30.89 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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