Orbit and dynamics
Between its closest point (0.955 AU) and its farthest (1.908 AU), the heliocentric distance changes by 0.953 AU over every revolution.
One full revolution takes 1.71 yr (626 days), computed from the semi-major axis of 1.432 AU.
An eccentricity of 0.333 makes the orbit moderately elongated.
The orbital plane is tilted 18.72° relative to the ecliptic.
By the vis-viva equation its orbital speed rises to 35.2 km/s at perihelion and falls to 17.6 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 = 20.6 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.27 km.
Observation record and orbit quality
Astrometry from 87 individual observations underpins this orbit; the fit leaves an RMS residual of 0.6431 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 |
|---|---|---|
| 2028-Jan-10 08:22 | 0.184176 AU 27552264 km |
14.18 km/s |
| 2040-Jan-03 22:44 | 0.264365 AU 39548382 km |
15.86 km/s |
| 2051-Dec-28 06:58 | 0.356039 AU 53262638 km |
18.03 km/s |
| 2057-Mar-26 19:34 | 0.446234 AU 66755607 km |
17.34 km/s |
| 2063-Dec-21 21:04 | 0.451128 AU 67487832 km |
20.46 km/s |
| 2069-Mar-15 06:30 | 0.362154 AU 54177517 km |
15.27 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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