SpaceAtlas Space Object Data
NASA JPL SBDB · 434734

434734

434734 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.495 AU it takes 1.83 yr to circle the Sun.

Apollo Observations: 199
Orbital Period · P
1.83 yr
v(q)
39 km/s
v(Q)
15.2 km/s
Diameter · ≈
0.35 km
TJ
4.36
Eccentricity · e
0.4382

Orbit and dynamics

The path is an ellipse reaching 0.84 AU from the Sun at perihelion and 2.15 AU at aphelion, a radial span of 1.31 AU.

Applying Kepler's third law to a = 1.495 AU gives an orbital period of 1.83 yr, or about 668 days.

The high eccentricity (0.438) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

A steep inclination of 24.64° carries it well above and below the ecliptic plane.

By the vis-viva equation its orbital speed rises to 39 km/s at perihelion and falls to 15.2 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 = 20.01 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.35 km.

Observation record and orbit quality

The current orbit solution is based on 199 observations and has a weighted RMS residual of 0.5374 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
1.495 AU
Eccentricity
0.4382
Perihelion
0.84 AU
Aphelion
2.150109 AU
Inclination
24.64°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
46.73°

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 distanceVelocity
2059-Mar-23 09:43 0.014866 AU
2223879 km
17.17 km/s
2070-Mar-24 12:53 0.038260 AU
5723658 km
17.59 km/s

Distances in astronomical units (AU) and kilometres. Source: NASA/JPL CNEOS Close Approach Data API.

Physical Parameters

Diameter
— km
Albedo
—
Density
— g/cm³
Rotation Period
— h
Absolute Magnitude
20.01

Orbit Quality

RMS
0.53745
Condition
0
Orbit ID
—
Data source: NASA JPL Small-Body Database · NASA CNEOS. 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.

Keep exploring

Explore asteroids, comets and near-Earth objects with JPL orbital data.