Orbit and dynamics
Between its closest point (0.899 AU) and its farthest (2.112 AU), the heliocentric distance changes by 1.213 AU over every revolution.
One full revolution takes 1.85 yr (675 days), computed from the semi-major axis of 1.506 AU.
The high eccentricity (0.403) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.
The orbital plane is tilted 16.63° relative to the ecliptic.
By the vis-viva equation its orbital speed rises to 37.2 km/s at perihelion and falls to 15.8 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 0.25 km, a value from direct size determination rather than from brightness alone.
A geometric albedo of 0.257 points to a comparatively bright, reflective surface.
Observation record and orbit quality
Astrometry from 283 individual observations underpins this orbit; the fit leaves an RMS residual of 0.4497 arcseconds.
Condition code U = 2 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 |
|---|---|---|
| 2028-Feb-18 16:23 | 0.380076 AU 56858564 km |
20.03 km/s |
| 2029-Sep-18 15:00 | 0.275970 AU 41284518 km |
18.77 km/s |
| 2040-Oct-14 11:51 | 0.290703 AU 43488616 km |
8.44 km/s |
| 2041-Feb-07 22:35 | 0.240529 AU 35982665 km |
9.78 km/s |
| 2052-Feb-22 12:07 | 0.459731 AU 68774732 km |
22.58 km/s |
| 2053-Sep-22 18:49 | 0.193122 AU 28890699 km |
16.48 km/s |
| 2065-Feb-07 15:44 | 0.214704 AU 32119279 km |
10.78 km/s |
| 2076-Feb-23 20:03 | 0.484018 AU 72408121 km |
23.35 km/s |
| 2077-Sep-23 21:22 | 0.174009 AU 26031407 km |
15.93 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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