SpaceAtlas Space Object Data
NASA JPL SBDB · 2020 FU

2020 FU

2020 FU belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.21 AU it takes 1.33 yr to circle the Sun.

Apollo Observations: 42
Orbital Period · P
1.33 yr
v(q)
32.4 km/s
v(Q)
22.6 km/s
Diameter · ≈
0.02 km
TJ
5.13
Eccentricity · e
0.1785

Orbit and dynamics

Between its closest point (0.994 AU) and its farthest (1.426 AU), the heliocentric distance changes by 0.432 AU over every revolution.

One full revolution takes 1.33 yr (486 days), computed from the semi-major axis of 1.21 AU.

An eccentricity of 0.178 makes the orbit moderately elongated.

A steep inclination of 28.88° carries it well above and below the ecliptic plane.

By the vis-viva equation its orbital speed rises to 32.4 km/s at perihelion and falls to 22.6 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 = 26.4 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.02 km.

Observation record and orbit quality

Astrometry from 42 individual observations underpins this orbit; the fit leaves an RMS residual of 0.5336 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
1.21 AU
Eccentricity
0.1785
Perihelion
0.994 AU
Aphelion
1.425985 AU
Inclination
28.88°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
269.25°

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-Oct-15 15:01 0.398797 AU
59659152 km
15.66 km/s
2028-Mar-14 13:49 0.039158 AU
5857989 km
15.39 km/s
2031-Oct-17 12:12 0.405401 AU
60647129 km
15.95 km/s
2032-Mar-12 19:17 0.061923 AU
9263529 km
15.39 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
26.4

Orbit Quality

RMS
0.53361
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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