SpaceAtlas Space Object Data
NASA JPL SBDB · 2002 GG8

2002 GG8

2002 GG8 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 2.302 AU it takes 3.49 yr to circle the Sun.

Apollo Observations: 25
Orbital Period · P
3.49 yr
v(q)
37.7 km/s
v(Q)
10.2 km/s
Diameter · ≈
0.04 km
TJ
3.33
Eccentricity · e
0.5725

Orbit and dynamics

Between its closest point (0.984 AU) and its farthest (3.62 AU), the heliocentric distance changes by 2.636 AU over every revolution.

One full revolution takes 3.49 yr (1,276 days), computed from the semi-major axis of 2.302 AU.

The high eccentricity (0.573) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

The orbital plane is tilted 12.39° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 37.7 km/s at perihelion and falls to 10.2 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 = 24.7 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.04 km.

Observation record and orbit quality

Astrometry from 25 individual observations underpins this orbit; the fit leaves an RMS residual of 0.7206 arcseconds.

Condition code U = 8 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
2.302 AU
Eccentricity
0.5725
Perihelion
0.984 AU
Aphelion
3.619895 AU
Inclination
12.39°
Orbital Period
— yr
Epoch
2452385.5
Mean Anomaly
10.35°

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
24.7

Orbit Quality

RMS
0.72055
Condition
8
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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