SpaceAtlas Space Object Data
NASA JPL SBDB · 2016 GS220

2016 GS220

2016 GS220 is an Aten-type near-Earth asteroid whose orbit lies mostly inside that of Earth, with a semi-major axis of 0.865 AU and a period of 0.81 yr.

Aten Observations: 29
Orbital Period · P
0.81 yr
v(q)
56.5 km/s
v(Q)
18.1 km/s
Diameter · ≈
0.1 km
TJ
6.71
Eccentricity · e
0.514

Orbit and dynamics

The path is an ellipse reaching 0.421 AU from the Sun at perihelion and 1.31 AU at aphelion, a radial span of 0.889 AU.

Applying Kepler's third law to a = 0.865 AU gives an orbital period of 0.81 yr, or about 294 days.

The high eccentricity (0.514) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

The orbital plane is tilted 6.81° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 56.5 km/s at perihelion and falls to 18.1 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 = 22.78 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.1 km.

Observation record and orbit quality

The current orbit solution is based on 29 observations and has a weighted RMS residual of 0.7351 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
0.8654 AU
Eccentricity
0.514
Perihelion
0.421 AU
Aphelion
1.310216 AU
Inclination
6.81°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
98.21°

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
22.78

Orbit Quality

RMS
0.73515
Condition
3
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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