Orbit and dynamics
The path is an ellipse reaching 0.673 AU from the Sun at perihelion and 1.157 AU at aphelion, a radial span of 0.484 AU.
Applying Kepler's third law to a = 0.915 AU gives an orbital period of 0.87 yr, or about 320 days.
An eccentricity of 0.265 makes the orbit moderately elongated.
Its inclination of 1.3° keeps it close to the plane of the ecliptic.
By the vis-viva equation its orbital speed rises to 40.8 km/s at perihelion and falls to 23.7 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
The measured diameter is 0.92 km, a value from direct size determination rather than from brightness alone.
Its geometric albedo of 0.033 indicates a very dark, carbonaceous-type surface.
Observation record and orbit quality
The current orbit solution is based on 1,164 observations and has a weighted RMS residual of 0.4295 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 |
|---|---|---|
| 2031-Oct-12 15:29 | 0.158788 AU 23754308 km |
6.11 km/s |
| 2038-Sep-29 16:55 | 0.155796 AU 23306694 km |
6.05 km/s |
| 2045-Sep-22 19:01 | 0.149285 AU 22332685 km |
5.92 km/s |
| 2052-Sep-20 04:35 | 0.146894 AU 21974972 km |
5.90 km/s |
| 2059-Sep-15 14:01 | 0.139145 AU 20815757 km |
5.77 km/s |
| 2066-Sep-17 08:20 | 0.141235 AU 21128474 km |
5.81 km/s |
| 2073-Sep-23 12:51 | 0.149214 AU 22322156 km |
5.93 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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