Orbit and dynamics
Between its closest point (0.83 AU) and its farthest (1.88 AU), the heliocentric distance changes by 1.05 AU over every revolution.
One full revolution takes 1.58 yr (576 days), computed from the semi-major axis of 1.355 AU.
An eccentricity of 0.387 makes the orbit moderately elongated.
The orbital plane is tilted 13.5° relative to the ecliptic.
By the vis-viva equation its orbital speed rises to 38.5 km/s at perihelion and falls to 17 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 1.67 km, a value from direct size determination rather than from brightness alone.
A geometric albedo of 0.121 points to a comparatively bright, reflective surface.
Observation record and orbit quality
Astrometry from 1,745 individual observations underpins this orbit; the fit leaves an RMS residual of 0.4145 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 |
|---|---|---|
| 2031-Nov-10 17:00 | 0.098497 AU 14734888 km |
10.52 km/s |
| 2061-Oct-21 02:50 | 0.105850 AU 15834863 km |
13.98 km/s |
| 2072-Nov-18 06:56 | 0.133249 AU 19933734 km |
10.19 km/s |
Distances in astronomical units (AU) and kilometres. Source: NASA/JPL CNEOS Close Approach Data API.
Physical Parameters
Orbit Quality
Related Objects
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