Orbit and dynamics
Between its closest point (0.492 AU) and its farthest (2.294 AU), the heliocentric distance changes by 1.802 AU over every revolution.
One full revolution takes 1.64 yr (601 days), computed from the semi-major axis of 1.393 AU.
The high eccentricity (0.647) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.
A steep inclination of 45.45° carries it well above and below the ecliptic plane.
By the vis-viva equation its orbital speed rises to 54.5 km/s at perihelion and falls to 11.7 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
No direct size measurement is available; from an absolute magnitude of H = 18.95 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.58 km.
Observation record and orbit quality
Astrometry from 135 individual observations underpins this orbit; the fit leaves an RMS residual of 0.354 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-Jan-06 01:20 | 0.491617 AU 73544868 km |
28.75 km/s |
| 2038-Aug-17 12:55 | 0.425154 AU 63602157 km |
22.57 km/s |
| 2042-Mar-07 05:55 | 0.478329 AU 71556980 km |
41.18 km/s |
| 2043-Aug-04 20:02 | 0.023208 AU 3471809 km |
29.13 km/s |
| 2047-Feb-12 20:09 | 0.261963 AU 39189099 km |
33.29 km/s |
| 2048-Jul-19 06:45 | 0.336608 AU 50355912 km |
37.69 km/s |
| 2052-Jan-17 19:42 | 0.401912 AU 60125165 km |
29.04 km/s |
| 2066-Aug-12 16:46 | 0.243427 AU 36416115 km |
25.02 km/s |
| 2070-Feb-26 07:20 | 0.364747 AU 54565341 km |
37.71 km/s |
| 2071-Jul-29 20:06 | 0.120676 AU 18052799 km |
32.31 km/s |
| 2075-Feb-03 10:46 | 0.275433 AU 41204248 km |
31.14 km/s |
| 2076-Jul-12 18:00 | 0.473220 AU 70792766 km |
41.39 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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