SpaceAtlas Space Object Data
NASA JPL SBDB · 2023 CE

2023 CE

2023 CE belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.181 AU it takes 1.28 yr to circle the Sun.

Apollo Observations: 20
Orbital Period · P
1.28 yr
v(q)
31.9 km/s
v(Q)
23.5 km/s
Diameter · ≈
0.03 km
TJ
5.22
Eccentricity · e
0.1521

Orbit and dynamics

The path is an ellipse reaching 1.002 AU from the Sun at perihelion and 1.361 AU at aphelion, a radial span of 0.359 AU.

Applying Kepler's third law to a = 1.181 AU gives an orbital period of 1.28 yr, or about 469 days.

An eccentricity of 0.152 makes the orbit moderately elongated.

A steep inclination of 30.67° carries it well above and below the ecliptic plane.

By the vis-viva equation its orbital speed rises to 31.9 km/s at perihelion and falls to 23.5 km/s at aphelion.

Size and surface

No direct size measurement is available; from an absolute magnitude of H = 25.7 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.03 km.

Observation record and orbit quality

The current orbit solution is based on 20 observations and has a weighted RMS residual of 0.4836 arcseconds.

Condition code U = 8 signals a poorly constrained orbit, so its future path should be treated as provisional.

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
1.181 AU
Eccentricity
0.1521
Perihelion
1.002 AU
Aphelion
1.36063 AU
Inclination
30.67°
Orbital Period
— yr
Epoch
2459976.5
Mean Anomaly
347.1°

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
2027-Aug-13 17:27 0.389794 AU
58312359 km
15.09 km/s
2032-Jan-27 22:09 0.018274 AU
2733814 km
17.17 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
25.7

Orbit Quality

RMS
0.4836
Condition
8
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.

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