SpaceAtlas Space Object Data
NASA JPL SBDB · 2022 KG2

2022 KG2

2022 KG2 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.09 AU it takes 1.14 yr to circle the Sun.

Apollo Observations: 40
Orbital Period · P
1.14 yr
v(q)
46.6 km/s
v(Q)
17.5 km/s
Diameter · ≈
0.03 km
TJ
5.59
Eccentricity · e
0.4549

Orbit and dynamics

The path is an ellipse reaching 0.594 AU from the Sun at perihelion and 1.586 AU at aphelion, a radial span of 0.992 AU.

Applying Kepler's third law to a = 1.09 AU gives an orbital period of 1.14 yr, or about 416 days.

The high eccentricity (0.455) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

Its inclination of 2.5° keeps it close to the plane of the ecliptic.

By the vis-viva equation its orbital speed rises to 46.6 km/s at perihelion and falls to 17.5 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 = 25.04 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 40 observations and has a weighted RMS residual of 0.6014 arcseconds.

Condition code U = 7 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
1.09 AU
Eccentricity
0.4549
Perihelion
0.594 AU
Aphelion
1.585841 AU
Inclination
2.5°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
259.12°

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-Sep-27 22:31 0.307512 AU
46003115 km
24.98 km/s
2028-Sep-14 13:16 0.364873 AU
54584218 km
9.70 km/s
2030-May-13 00:26 0.110539 AU
16536329 km
8.17 km/s
2039-Jun-04 18:58 0.244015 AU
36504096 km
25.72 km/s
2044-Oct-14 08:00 0.035583 AU
5323072 km
13.43 km/s
2060-Sep-22 22:45 0.221245 AU
33097740 km
27.77 km/s
2069-Oct-19 18:38 0.034044 AU
5092978 km
9.34 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
25.04

Orbit Quality

RMS
0.60135
Condition
7
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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