Orbit and dynamics
Between its closest point (1.27 AU) and its farthest (2.3 AU), the heliocentric distance changes by 1.03 AU over every revolution.
One full revolution takes 2.38 yr (871 days), computed from the semi-major axis of 1.785 AU.
An eccentricity of 0.289 makes the orbit moderately elongated.
A steep inclination of 29.79° carries it well above and below the ecliptic plane.
By the vis-viva equation its orbital speed rises to 30 km/s at perihelion and falls to 16.6 km/s at aphelion.
Its perihelion lies just outside Earth's orbit, which is why it is classed as Earth-approaching rather than Earth-crossing.
Size and surface
No direct size measurement is available; from an absolute magnitude of H = 18.41 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.74 km.
Observation record and orbit quality
Astrometry from 318 individual observations underpins this orbit; the fit leaves an RMS residual of 0.5077 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 |
|---|---|---|
| 2034-Dec-18 03:43 | 0.318377 AU 47628568 km |
15.52 km/s |
| 2065-Dec-17 17:37 | 0.317847 AU 47549189 km |
15.46 km/s |
Distances in astronomical units (AU) and kilometres. Source: NASA/JPL CNEOS Close Approach Data API.
Physical Parameters
Orbit Quality
Related Objects
Same object type
Similar orbit
Keep exploring
Explore asteroids, comets and near-Earth objects with JPL orbital data.