SpaceAtlas Space Object Data
NASA JPL SBDB · 2020 JF

2020 JF

2020 JF belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.193 AU it takes 1.30 yr to circle the Sun.

Apollo Observations: 15
Orbital Period · P
1.30 yr
v(q)
49.7 km/s
v(Q)
15 km/s
Diameter · ≈
0.02 km
TJ
5.15
Eccentricity · e
0.5369

Orbit and dynamics

Between its closest point (0.552 AU) and its farthest (1.834 AU), the heliocentric distance changes by 1.282 AU over every revolution.

One full revolution takes 1.30 yr (476 days), computed from the semi-major axis of 1.193 AU.

The high eccentricity (0.537) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

The orbital plane is tilted 13.16° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 49.7 km/s at perihelion and falls to 15 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 = 26.1 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.02 km.

Observation record and orbit quality

Astrometry from 15 individual observations underpins this orbit; the fit leaves an RMS residual of 0.3326 arcseconds.

Condition code U = 9 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
1.193 AU
Eccentricity
0.5369
Perihelion
0.552 AU
Aphelion
1.833522 AU
Inclination
13.16°
Orbital Period
— yr
Epoch
2458972.5
Mean Anomaly
312.38°

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

Predicted close approaches to Earth, from NASA's Center for Near-Earth Object Studies (CNEOS).

Date (UTC)Miss distanceVelocity
2063-Apr-24 19:39 0.224146 AU
33531757 km
27.71 km/s
2064-Nov-17 23:11 0.219616 AU
32854123 km
13.13 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
26.1

Orbit Quality

RMS
0.33263
Condition
9
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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