SpaceAtlas Space Object Data
NASA JPL SBDB · 224926

224926

224926 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.461 AU it takes 1.77 yr to circle the Sun.

Apollo Observations: 704
Orbital Period · P
1.77 yr
v(q)
39.5 km/s
v(Q)
15.4 km/s
Diameter · ≈
1.08 km
TJ
4.38
Eccentricity · e
0.4398

Orbit and dynamics

The path is an ellipse reaching 0.819 AU from the Sun at perihelion and 2.104 AU at aphelion, a radial span of 1.285 AU.

Applying Kepler's third law to a = 1.461 AU gives an orbital period of 1.77 yr, or about 645 days.

The high eccentricity (0.44) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

A steep inclination of 30.21° carries it well above and below the ecliptic plane.

By the vis-viva equation its orbital speed rises to 39.5 km/s at perihelion and falls to 15.4 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 = 17.59 and an assumed geometric albedo of 0.14, the diameter works out to roughly 1.08 km.

Observation record and orbit quality

The current orbit solution is based on 704 observations and has a weighted RMS residual of 0.4964 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
1.461 AU
Eccentricity
0.4398
Perihelion
0.819 AU
Aphelion
2.103548 AU
Inclination
30.21°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
274.34°

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
2030-May-08 15:03 0.181068 AU
27087430 km
20.10 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
17.59

Orbit Quality

RMS
0.49641
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.