Orbit and dynamics
The path is an ellipse reaching 1.064 AU from the Sun at perihelion and 2.12 AU at aphelion, a radial span of 1.056 AU.
Applying Kepler's third law to a = 1.592 AU gives an orbital period of 2.01 yr, or about 734 days.
An eccentricity of 0.331 makes the orbit moderately elongated.
The orbital plane is tilted 13.03° relative to the ecliptic.
By the vis-viva equation its orbital speed rises to 33.3 km/s at perihelion and falls to 16.7 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 0.78 km, a value from direct size determination rather than from brightness alone.
A geometric albedo of 0.461 points to a comparatively bright, reflective surface.
Observation record and orbit quality
The current orbit solution is based on 4,655 observations and has a weighted RMS residual of 0.3516 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-Dec-15 23:53 | 0.191106 AU 28589035 km |
10.10 km/s |
| 2031-Dec-17 08:53 | 0.162889 AU 24367826 km |
9.23 km/s |
| 2033-Dec-17 15:54 | 0.147086 AU 22003717 km |
8.49 km/s |
| 2035-Dec-18 11:48 | 0.144143 AU 21563457 km |
7.96 km/s |
| 2037-Dec-18 00:36 | 0.152688 AU 22841843 km |
7.49 km/s |
| 2039-Dec-18 03:29 | 0.173227 AU 25914427 km |
7.14 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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