SpaceAtlas Space Object Data
NASA JPL SBDB · 2023 FG

2023 FG

2023 FG belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.05 AU it takes 1.08 yr to circle the Sun.

Apollo Observations: 38
Orbital Period · P
1.08 yr
v(q)
40.2 km/s
v(Q)
21 km/s
Diameter · ≈
0.01 km
TJ
5.8
Eccentricity · e
0.314

Orbit and dynamics

Between its closest point (0.72 AU) and its farthest (1.38 AU), the heliocentric distance changes by 0.66 AU over every revolution.

One full revolution takes 1.08 yr (393 days), computed from the semi-major axis of 1.05 AU.

An eccentricity of 0.314 makes the orbit moderately elongated.

The orbital plane is tilted 7.5° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 40.2 km/s at perihelion and falls to 21 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 = 27.49 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.01 km.

Observation record and orbit quality

Astrometry from 38 individual observations underpins this orbit; the fit leaves an RMS residual of 0.4587 arcseconds.

Condition code U = 6 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
1.05 AU
Eccentricity
0.314
Perihelion
0.72 AU
Aphelion
1.3797 AU
Inclination
7.5°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
292.32°

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
2036-Mar-02 16:56 0.456639 AU
68312285 km
24.94 km/s
2037-Mar-23 03:44 0.005468 AU
818074 km
10.64 km/s
2038-Jan-31 00:48 0.363715 AU
54410940 km
8.77 km/s
2038-Jun-26 00:48 0.312403 AU
46734896 km
10.86 km/s
2038-Dec-15 09:21 0.406467 AU
60806648 km
9.04 km/s
2039-Oct-03 19:59 0.042427 AU
6346944 km
7.89 km/s
2040-Oct-29 13:35 0.289309 AU
43279962 km
22.73 km/s
2051-Feb-04 13:30 0.362543 AU
54235711 km
8.57 km/s
2051-Jun-19 12:15 0.293003 AU
43832589 km
10.70 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
27.49

Orbit Quality

RMS
0.45867
Condition
6
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.