SpaceAtlas Space Object Data
NASA JPL SBDB · 2020 KT2

2020 KT2

2020 KT2 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 2.45 AU it takes 3.83 yr to circle the Sun.

Apollo Observations: 53
Orbital Period · P
3.83 yr
v(q)
40.8 km/s
v(Q)
8.9 km/s
Diameter · ≈
0.16 km
TJ
3.16
Eccentricity · e
0.6423

Orbit and dynamics

The path is an ellipse reaching 0.876 AU from the Sun at perihelion and 4.024 AU at aphelion, a radial span of 3.148 AU.

Applying Kepler's third law to a = 2.45 AU gives an orbital period of 3.83 yr, or about 1,401 days.

The high eccentricity (0.642) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

The orbital plane is tilted 8.55° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 40.8 km/s at perihelion and falls to 8.9 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 = 21.7 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.16 km.

Observation record and orbit quality

The current orbit solution is based on 53 observations and has a weighted RMS residual of 0.611 arcseconds.

Condition code U = 4 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
2.45 AU
Eccentricity
0.6423
Perihelion
0.876 AU
Aphelion
4.023635 AU
Inclination
8.55°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
187.12°

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
2043-Jun-08 02:10 0.121748 AU
18213179 km
18.28 km/s
2062-Jun-07 14:33 0.110471 AU
16526278 km
18.24 km/s
2077-Oct-29 00:11 0.429402 AU
64237690 km
26.60 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
21.7

Orbit Quality

RMS
0.61097
Condition
4
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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