Orbit and dynamics
Between its closest point (0.229 AU) and its farthest (1.527 AU), the heliocentric distance changes by 1.298 AU over every revolution.
One full revolution takes 0.82 yr (301 days), computed from the semi-major axis of 0.878 AU.
The high eccentricity (0.739) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.
The orbital plane is tilted 13.43° relative to the ecliptic.
By the vis-viva equation its orbital speed rises to 82.1 km/s at perihelion and falls to 12.3 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 0.41 km, a value from direct size determination rather than from brightness alone.
A geometric albedo of 0.264 points to a comparatively bright, reflective surface.
Observation record and orbit quality
Astrometry from 565 individual observations underpins this orbit; the fit leaves an RMS residual of 0.4131 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-Jan-25 16:00 | 0.149091 AU 22303730 km |
27.01 km/s |
| 2044-Nov-24 11:07 | 0.199619 AU 29862611 km |
27.78 km/s |
| 2058-Nov-22 23:43 | 0.167484 AU 25055309 km |
25.74 km/s |
| 2061-Jan-29 21:26 | 0.162496 AU 24309093 km |
20.78 km/s |
| 2072-Nov-21 07:59 | 0.156776 AU 23453296 km |
24.32 km/s |
| 2075-Jan-30 05:40 | 0.134980 AU 20192667 km |
21.87 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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