SpaceAtlas Space Object Data
NASA JPL SBDB · 2022 KC3

2022 KC3

2022 KC3 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.265 AU it takes 1.42 yr to circle the Sun.

Apollo Observations: 33
Orbital Period · P
1.42 yr
v(q)
33.4 km/s
v(Q)
21 km/s
Diameter · ≈
0.02 km
TJ
5.07
Eccentricity · e
0.2268

Orbit and dynamics

The path is an ellipse reaching 0.978 AU from the Sun at perihelion and 1.552 AU at aphelion, a radial span of 0.574 AU.

Applying Kepler's third law to a = 1.265 AU gives an orbital period of 1.42 yr, or about 520 days.

An eccentricity of 0.227 makes the orbit moderately elongated.

Its inclination of 0.76° keeps it close to the plane of the ecliptic.

By the vis-viva equation its orbital speed rises to 33.4 km/s at perihelion and falls to 21 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 = 26.62 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.02 km.

Observation record and orbit quality

The current orbit solution is based on 33 observations and has a weighted RMS residual of 0.4417 arcseconds.

Condition code U = 5 indicates a moderately constrained orbit; predictions decades ahead still carry noticeable uncertainty.

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
1.265 AU
Eccentricity
0.2268
Perihelion
0.978 AU
Aphelion
1.551902 AU
Inclination
0.76°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
270.51°

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
2029-Feb-24 20:11 0.478795 AU
71626776 km
7.74 km/s
2032-May-12 09:26 0.230811 AU
34528841 km
11.90 km/s
2032-Nov-01 16:18 0.366553 AU
54835602 km
5.62 km/s
2039-Mar-21 04:55 0.380756 AU
56960353 km
5.91 km/s
2039-Sep-15 19:56 0.262511 AU
39271036 km
12.96 km/s
2042-Nov-26 23:56 0.467706 AU
69967806 km
7.60 km/s
2049-Aug-24 10:32 0.006167 AU
922545 km
5.31 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
26.62

Orbit Quality

RMS
0.44168
Condition
5
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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