477719

Orbit and dynamics

Between its closest point (1.088 AU) and its farthest (3.068 AU), the heliocentric distance changes by 1.98 AU over every revolution.

One full revolution takes 3.00 yr (1,094 days), computed from the semi-major axis of 2.078 AU.

The high eccentricity (0.476) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

Its inclination of 0.83° keeps it close to the plane of the ecliptic.

By the vis-viva equation its orbital speed rises to 34.7 km/s at perihelion and falls to 12.3 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 = 25.26 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.03 km.

Observation record and orbit quality

Astrometry from 131 individual observations underpins this orbit; the fit leaves an RMS residual of 0.5579 arcseconds.

Condition code U = 0 means the orbit is very well determined, leaving only a small uncertainty in the future ephemeris.