SpaceAtlas Space Object Data
NASA JPL SBDB · 2020 FL

2020 FL

2020 FL is an Aten-type near-Earth asteroid whose orbit lies mostly inside that of Earth, with a semi-major axis of 0.871 AU and a period of 0.81 yr.

Aten Observations: 82
Orbital Period · P
0.81 yr
v(q)
48.5 km/s
v(Q)
21 km/s
Diameter · ≈
0.04 km
TJ
6.72
Eccentricity · e
0.3968

Orbit and dynamics

Between its closest point (0.526 AU) and its farthest (1.217 AU), the heliocentric distance changes by 0.691 AU over every revolution.

One full revolution takes 0.81 yr (297 days), computed from the semi-major axis of 0.871 AU.

An eccentricity of 0.397 makes the orbit moderately elongated.

The orbital plane is tilted 5.9° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 48.5 km/s at perihelion and falls to 21 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 = 24.81 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.04 km.

Observation record and orbit quality

Astrometry from 82 individual observations underpins this orbit; the fit leaves an RMS residual of 0.3971 arcseconds.

Condition code U = 3 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
0.8712 AU
Eccentricity
0.3968
Perihelion
0.526 AU
Aphelion
1.216892 AU
Inclination
5.9°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
147.07°

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-Dec-10 07:16 0.123345 AU
18452083 km
9.63 km/s
2033-Mar-16 04:34 0.066764 AU
9987735 km
10.15 km/s
2040-Dec-08 07:43 0.099239 AU
14846008 km
11.75 km/s
2046-Mar-09 13:10 0.137179 AU
20521626 km
8.93 km/s
2053-Dec-10 10:01 0.133366 AU
19951225 km
14.55 km/s
2055-Mar-14 15:52 0.150266 AU
22479422 km
16.61 km/s
2068-Mar-16 13:02 0.051908 AU
7765375 km
13.55 km/s
2075-Dec-18 18:25 0.169450 AU
25349291 km
8.55 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
24.81

Orbit Quality

RMS
0.39713
Condition
3
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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