SpaceAtlas Space Object Data
NASA JPL SBDB · 329614

329614

329614 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 2.691 AU it takes 4.41 yr to circle the Sun.

Apollo Observations: 380
Orbital Period · P
4.41 yr
v(q)
41.4 km/s
v(Q)
8 km/s
Diameter · ≈
0.99 km
TJ
2.99
Eccentricity · e
0.6769

Orbit and dynamics

The path is an ellipse reaching 0.869 AU from the Sun at perihelion and 4.513 AU at aphelion, a radial span of 3.644 AU.

Applying Kepler's third law to a = 2.691 AU gives an orbital period of 4.41 yr, or about 1,612 days.

The high eccentricity (0.677) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

The orbital plane is tilted 5.4° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 41.4 km/s at perihelion and falls to 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

No direct size measurement is available; from an absolute magnitude of H = 17.78 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.99 km.

Observation record and orbit quality

The current orbit solution is based on 380 observations and has a weighted RMS residual of 0.493 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

Semi-Major Axis
2.691 AU
Eccentricity
0.6769
Perihelion
0.869 AU
Aphelion
4.512538 AU
Inclination
5.4°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
46.08°

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

Diameter
— km
Albedo
—
Density
— g/cm³
Rotation Period
— h
Absolute Magnitude
17.78

Orbit Quality

RMS
0.49305
Condition
0
Orbit ID
—
Data source: NASA JPL Small-Body Database . 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.

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