SpaceAtlas Space Object Data
NASA JPL SBDB · 2020 KF4

2020 KF4

2020 KF4 is an Aten-type near-Earth asteroid whose orbit lies mostly inside that of Earth, with a semi-major axis of 0.863 AU and a period of 0.80 yr.

Aten Observations: 15
Orbital Period · P
0.80 yr
v(q)
46.7 km/s
v(Q)
22 km/s
Diameter · ≈
0.05 km
TJ
6.77
Eccentricity · e
0.3587

Orbit and dynamics

The path is an ellipse reaching 0.553 AU from the Sun at perihelion and 1.172 AU at aphelion, a radial span of 0.619 AU.

Applying Kepler's third law to a = 0.863 AU gives an orbital period of 0.80 yr, or about 293 days.

An eccentricity of 0.359 makes the orbit moderately elongated.

The orbital plane is tilted 13.82° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 46.7 km/s at perihelion and falls to 22 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 = 24.4 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.05 km.

Observation record and orbit quality

The current orbit solution is based on 15 observations and has a weighted RMS residual of 0.3406 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
0.8625 AU
Eccentricity
0.3587
Perihelion
0.553 AU
Aphelion
1.171879 AU
Inclination
13.82°
Orbital Period
— yr
Epoch
2458991.5
Mean Anomaly
153.05°

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

No close approaches to Earth are currently on record for this object.

Physical Parameters

Diameter
— km
Albedo
—
Density
— g/cm³
Rotation Period
— h
Absolute Magnitude
24.4

Orbit Quality

RMS
0.34056
Condition
8
Orbit ID
—
Data source: NASA JPL Small-Body Database . 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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