Orbit and dynamics
Between its closest point (0.85 AU) and its farthest (2.583 AU), the heliocentric distance changes by 1.733 AU over every revolution.
One full revolution takes 2.25 yr (822 days), computed from the semi-major axis of 1.717 AU.
The high eccentricity (0.505) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.
The orbital plane is tilted 9.42° relative to the ecliptic.
By the vis-viva equation its orbital speed rises to 39.6 km/s at perihelion and falls to 13 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 = 19.82 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.39 km.
Observation record and orbit quality
Astrometry from 169 individual observations underpins this orbit; the fit leaves an RMS residual of 0.415 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 |
|---|---|---|
| 2030-Dec-21 09:06 | 0.148188 AU 22168535 km |
10.76 km/s |
| 2039-Dec-22 00:07 | 0.147302 AU 22036047 km |
10.72 km/s |
| 2048-Dec-20 18:09 | 0.147739 AU 22101509 km |
10.76 km/s |
| 2057-Dec-19 21:21 | 0.146627 AU 21935131 km |
10.74 km/s |
| 2066-Dec-19 17:40 | 0.147479 AU 22062495 km |
10.77 km/s |
| 2075-Dec-22 06:08 | 0.147762 AU 22104845 km |
10.73 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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