SpaceAtlas Space Object Data
NASA JPL SBDB · 2020 GT2

2020 GT2

2020 GT2 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.141 AU it takes 1.22 yr to circle the Sun.

Apollo Observations: 157
Orbital Period · P
1.22 yr
v(q)
34.3 km/s
v(Q)
22.7 km/s
Diameter · ≈
0.03 km
TJ
5.41
Eccentricity · e
0.2048

Orbit and dynamics

The path is an ellipse reaching 0.908 AU from the Sun at perihelion and 1.375 AU at aphelion, a radial span of 0.467 AU.

Applying Kepler's third law to a = 1.141 AU gives an orbital period of 1.22 yr, or about 445 days.

An eccentricity of 0.205 makes the orbit moderately elongated.

A steep inclination of 22.23° carries it well above and below the ecliptic plane.

By the vis-viva equation its orbital speed rises to 34.3 km/s at perihelion and falls to 22.7 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 = 25.2 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.03 km.

Observation record and orbit quality

The current orbit solution is based on 157 observations and has a weighted RMS residual of 0.362 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
1.141 AU
Eccentricity
0.2048
Perihelion
0.908 AU
Aphelion
1.374677 AU
Inclination
22.23°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
325.71°

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
25.2

Orbit Quality

RMS
0.36201
Condition
7
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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