SpaceAtlas Space Object Data
NASA JPL SBDB · 2020 DJ3

2020 DJ3

2020 DJ3 is an Amor-type near-Earth asteroid that approaches Earth from beyond our orbit without crossing it, orbiting the Sun at 1.549 AU once every 1.93 yr.

Amor Observations: 40
Orbital Period · P
1.93 yr
v(q)
32.8 km/s
v(Q)
17.5 km/s
Diameter · ≈
0.05 km
TJ
4.22
Eccentricity · e
0.3045

Orbit and dynamics

The path is an ellipse reaching 1.077 AU from the Sun at perihelion and 2.021 AU at aphelion, a radial span of 0.944 AU.

Applying Kepler's third law to a = 1.549 AU gives an orbital period of 1.93 yr, or about 704 days.

An eccentricity of 0.304 makes the orbit moderately elongated.

A steep inclination of 33.86° carries it well above and below the ecliptic plane.

By the vis-viva equation its orbital speed rises to 32.8 km/s at perihelion and falls to 17.5 km/s at aphelion.

Its perihelion lies just outside Earth's orbit, which is why it is classed as Earth-approaching rather than Earth-crossing.

Size and surface

No direct size measurement is available; from an absolute magnitude of H = 24.4 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.05 km.

Observation record and orbit quality

The current orbit solution is based on 40 observations and has a weighted RMS residual of 0.6969 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
1.549 AU
Eccentricity
0.3045
Perihelion
1.077 AU
Aphelion
2.020671 AU
Inclination
33.86°
Orbital Period
— yr
Epoch
2458906.5
Mean Anomaly
352.74°

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
24.4

Orbit Quality

RMS
0.69686
Condition
9
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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