Orbit and dynamics
The path is an ellipse reaching 1.114 AU from the Sun at perihelion and 3.652 AU at aphelion, a radial span of 2.538 AU.
Applying Kepler's third law to a = 2.383 AU gives an orbital period of 3.68 yr, or about 1,344 days.
The high eccentricity (0.532) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.
The orbital plane is tilted 11.47° relative to the ecliptic.
By the vis-viva equation its orbital speed rises to 34.9 km/s at perihelion and falls to 10.7 km/s at aphelion.
Its perihelion lies just outside Earth's orbit, which is why it is classed as Earth-approaching rather than Earth-crossing.
Size and surface
The measured diameter is 1.63 km, a value from direct size determination rather than from brightness alone.
Its geometric albedo of 0.069 indicates a very dark, carbonaceous-type surface.
Observation record and orbit quality
The current orbit solution is based on 302 observations and has a weighted RMS residual of 0.6505 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 |
|---|---|---|
| 2038-Jun-07 08:46 | 0.487240 AU 72890033 km |
19.35 km/s |
| 2049-Jun-10 23:50 | 0.420802 AU 62951050 km |
17.51 km/s |
| 2060-Jun-20 22:23 | 0.276450 AU 41356355 km |
13.37 km/s |
| 2071-Jul-23 10:20 | 0.199595 AU 29858976 km |
8.52 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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