Orbit and dynamics
Between its closest point (1.028 AU) and its farthest (1.424 AU), the heliocentric distance changes by 0.396 AU over every revolution.
One full revolution takes 1.36 yr (496 days), computed from the semi-major axis of 1.226 AU.
An eccentricity of 0.162 makes the orbit moderately elongated.
The orbital plane is tilted 15.63° relative to the ecliptic.
By the vis-viva equation its orbital speed rises to 31.7 km/s at perihelion and falls to 22.9 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
The measured diameter is 0.34 km, a value from direct size determination rather than from brightness alone.
Its geometric albedo of 0.062 indicates a very dark, carbonaceous-type surface.
Observation record and orbit quality
Astrometry from 376 individual observations underpins this orbit; the fit leaves an RMS residual of 0.4764 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
No close approaches to Earth are currently on record for this object.
Physical Parameters
Orbit Quality
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