SpaceAtlas Space Object Data
NASA JPL SBDB · 2016 GA1

2016 GA1

2016 GA1 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.624 AU it takes 2.07 yr to circle the Sun.

Apollo Observations: 14
Orbital Period · P
2.07 yr
v(q)
46.2 km/s
v(Q)
11.8 km/s
Diameter · ≈
0.03 km
TJ
4.04
Eccentricity · e
0.5921

Orbit and dynamics

The path is an ellipse reaching 0.662 AU from the Sun at perihelion and 2.586 AU at aphelion, a radial span of 1.924 AU.

Applying Kepler's third law to a = 1.624 AU gives an orbital period of 2.07 yr, or about 756 days.

The high eccentricity (0.592) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

A steep inclination of 22.42° carries it well above and below the ecliptic plane.

By the vis-viva equation its orbital speed rises to 46.2 km/s at perihelion and falls to 11.8 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 = 25.5 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 14 observations and has a weighted RMS residual of 0.65 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
1.624 AU
Eccentricity
0.5921
Perihelion
0.662 AU
Aphelion
2.58557 AU
Inclination
22.42°
Orbital Period
— yr
Epoch
2457481.5
Mean Anomaly
29.34°

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
2076-Mar-28 14:56 0.063729 AU
9533681 km
21.49 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
25.5

Orbit Quality

RMS
0.64997
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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