SpaceAtlas Space Object Data
NASA JPL SBDB · 2020 FF4

2020 FF4

2020 FF4 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.029 AU it takes 1.04 yr to circle the Sun.

Apollo Observations: 78
Orbital Period · P
1.04 yr
v(q)
30.6 km/s
v(Q)
28.2 km/s
Diameter · ≈
0.01 km
TJ
5.94
Eccentricity · e
0.0415

Orbit and dynamics

Between its closest point (0.986 AU) and its farthest (1.072 AU), the heliocentric distance changes by 0.086 AU over every revolution.

One full revolution takes 1.04 yr (381 days), computed from the semi-major axis of 1.029 AU.

With e = 0.042, the orbit is close to circular.

The orbital plane is tilted 6.76° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 30.6 km/s at perihelion and falls to 28.2 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 = 27.9 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.01 km.

Observation record and orbit quality

Astrometry from 78 individual observations underpins this orbit; the fit leaves an RMS residual of 0.4255 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
1.029 AU
Eccentricity
0.0415
Perihelion
0.986 AU
Aphelion
1.071703 AU
Inclination
6.76°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
290.38°

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
27.9

Orbit Quality

RMS
0.42551
Condition
5
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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