SpaceAtlas Space Object Data
NASA JPL SBDB · 2023 CL2

2023 CL2

2023 CL2 is an Aten-type near-Earth asteroid whose orbit lies mostly inside that of Earth, with a semi-major axis of 0.979 AU and a period of 0.97 yr.

Aten Observations: 101
Orbital Period · P
0.97 yr
v(q)
35.1 km/s
v(Q)
25.8 km/s
Diameter · ≈
0.04 km
TJ
6.17
Eccentricity · e
0.1513

Orbit and dynamics

Between its closest point (0.831 AU) and its farthest (1.127 AU), the heliocentric distance changes by 0.296 AU over every revolution.

One full revolution takes 0.97 yr (354 days), computed from the semi-major axis of 0.979 AU.

An eccentricity of 0.151 makes the orbit moderately elongated.

Its inclination of 1.19° keeps it close to the plane of the ecliptic.

By the vis-viva equation its orbital speed rises to 35.1 km/s at perihelion and falls to 25.8 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 = 25 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.04 km.

Observation record and orbit quality

Astrometry from 101 individual observations underpins this orbit; the fit leaves an RMS residual of 0.5372 arcseconds.

Condition code U = 2 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
0.9793 AU
Eccentricity
0.1513
Perihelion
0.831 AU
Aphelion
1.127468 AU
Inclination
1.19°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
249.22°

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
2053-Feb-03 09:11 0.133285 AU
19939225 km
8.42 km/s
2054-Feb-09 15:24 0.060856 AU
9103956 km
2.93 km/s
2054-Nov-02 14:43 0.161780 AU
24201900 km
5.01 km/s
2055-Apr-21 16:12 0.123127 AU
18419611 km
3.83 km/s
2055-Sep-11 03:24 0.151866 AU
22718860 km
4.56 km/s
2056-Jun-27 06:06 0.023065 AU
3450522 km
3.99 km/s
2057-Jun-21 12:21 0.173642 AU
25976412 km
9.48 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
25.0

Orbit Quality

RMS
0.53716
Condition
2
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

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