SpaceAtlas Space Object Data
NASA JPL SBDB · 2020 FB2

2020 FB2

2020 FB2 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.385 AU it takes 1.63 yr to circle the Sun.

Apollo Observations: 171
Orbital Period · P
1.63 yr
v(q)
34.3 km/s
v(Q)
18.7 km/s
Diameter · ≈
0.02 km
TJ
4.7
Eccentricity · e
0.2949

Orbit and dynamics

The path is an ellipse reaching 0.976 AU from the Sun at perihelion and 1.793 AU at aphelion, a radial span of 0.817 AU.

Applying Kepler's third law to a = 1.385 AU gives an orbital period of 1.63 yr, or about 595 days.

An eccentricity of 0.295 makes the orbit moderately elongated.

The orbital plane is tilted 16.97° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 34.3 km/s at perihelion and falls to 18.7 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 = 26.2 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 171 observations and has a weighted RMS residual of 0.5437 arcseconds.

Condition code U = 6 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
1.385 AU
Eccentricity
0.2949
Perihelion
0.976 AU
Aphelion
1.793436 AU
Inclination
16.97°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
277.23°

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
26.2

Orbit Quality

RMS
0.54369
Condition
6
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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