Orbit and dynamics
Between its closest point (0.804 AU) and its farthest (1.88 AU), the heliocentric distance changes by 1.076 AU over every revolution.
One full revolution takes 1.55 yr (568 days), computed from the semi-major axis of 1.342 AU.
The high eccentricity (0.401) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.
A steep inclination of 21.59° carries it well above and below the ecliptic plane.
By the vis-viva equation its orbital speed rises to 39.3 km/s at perihelion and falls to 16.8 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 0.43 km, a value from direct size determination rather than from brightness alone.
A geometric albedo of 0.2 points to a comparatively bright, reflective surface.
Observation record and orbit quality
Astrometry from 189 individual observations underpins this orbit; the fit leaves an RMS residual of 0.4695 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 |
|---|---|---|
| 2027-Feb-24 09:27 | 0.291100 AU 43547930 km |
19.21 km/s |
| 2037-Sep-24 22:46 | 0.114987 AU 17201830 km |
13.72 km/s |
| 2041-Feb-22 02:27 | 0.248052 AU 37108031 km |
17.45 km/s |
| 2051-Sep-20 18:56 | 0.062752 AU 9387530 km |
14.56 km/s |
| 2055-Feb-21 18:18 | 0.229137 AU 34278386 km |
16.46 km/s |
| 2065-Sep-20 22:51 | 0.070237 AU 10507364 km |
14.43 km/s |
| 2069-Feb-21 14:04 | 0.236449 AU 35372220 km |
16.89 km/s |
| 2079-Sep-25 09:33 | 0.114184 AU 17081643 km |
13.71 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 size
Similar orbit
Keep exploring
Explore asteroids, comets and near-Earth objects with JPL orbital data.