SpaceAtlas Space Object Data
NASA JPL SBDB · 2016 GJ3

2016 GJ3

2016 GJ3 is an Amor-type near-Earth asteroid that approaches Earth from beyond our orbit without crossing it, orbiting the Sun at 1.3 AU once every 1.48 yr.

Amor Observations: 24
Orbital Period · P
1.48 yr
v(q)
29.9 km/s
v(Q)
22.9 km/s
Diameter · ≈
0.07 km
TJ
4.94
Eccentricity · e
0.1329

Orbit and dynamics

Between its closest point (1.127 AU) and its farthest (1.473 AU), the heliocentric distance changes by 0.346 AU over every revolution.

One full revolution takes 1.48 yr (541 days), computed from the semi-major axis of 1.3 AU.

An eccentricity of 0.133 makes the orbit moderately elongated.

The orbital plane is tilted 18.82° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 29.9 km/s at perihelion and falls to 22.9 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 = 23.4 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.07 km.

Observation record and orbit quality

Astrometry from 24 individual observations underpins this orbit; the fit leaves an RMS residual of 0.5103 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
1.3 AU
Eccentricity
0.1329
Perihelion
1.127 AU
Aphelion
1.47277 AU
Inclination
18.82°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
328.66°

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
2037-Sep-28 15:59 0.467803 AU
69982314 km
10.77 km/s
2040-Oct-11 04:26 0.446212 AU
66752315 km
10.85 km/s
2043-Oct-24 23:48 0.432106 AU
64642130 km
10.59 km/s
2053-Mar-28 19:34 0.201799 AU
30188694 km
11.92 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
23.4

Orbit Quality

RMS
0.51032
Condition
7
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

Explore asteroids, comets and near-Earth objects with JPL orbital data.