SpaceAtlas Space Object Data
NASA JPL SBDB · 2005 FG

2005 FG

2005 FG belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.122 AU it takes 1.19 yr to circle the Sun.

Apollo Observations: 104
Orbital Period · P
1.19 yr
v(q)
34.9 km/s
v(Q)
22.7 km/s
Diameter · ≈
0.05 km
TJ
5.54
Eccentricity · e
0.2129

Orbit and dynamics

Between its closest point (0.883 AU) and its farthest (1.361 AU), the heliocentric distance changes by 0.478 AU over every revolution.

One full revolution takes 1.19 yr (434 days), computed from the semi-major axis of 1.122 AU.

An eccentricity of 0.213 makes the orbit moderately elongated.

Its inclination of 3.88° keeps it close to the plane of the ecliptic.

By the vis-viva equation its orbital speed rises to 34.9 km/s at perihelion and falls to 22.7 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 = 24.06 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.05 km.

Observation record and orbit quality

Astrometry from 104 individual observations underpins this orbit; the fit leaves an RMS residual of 0.3921 arcseconds.

Condition code U = 0 means the orbit is very well determined, leaving only a small uncertainty in the future ephemeris.

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
1.122 AU
Eccentricity
0.2129
Perihelion
0.883 AU
Aphelion
1.360874 AU
Inclination
3.88°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
247.17°

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
2030-Mar-19 09:04 0.332901 AU
49801236 km
16.41 km/s
2030-Dec-20 02:38 0.384762 AU
57559603 km
7.62 km/s
2031-Sep-23 08:03 0.343230 AU
51346549 km
16.67 km/s
2037-Jan-25 19:58 0.334349 AU
50017886 km
6.73 km/s
2037-Sep-02 13:17 0.030690 AU
4591190 km
5.97 km/s
2043-Apr-08 03:16 0.042377 AU
6339550 km
5.70 km/s
2043-Nov-12 22:38 0.332819 AU
49789007 km
6.61 km/s
2049-Mar-17 08:21 0.362678 AU
54255922 km
17.30 km/s
2049-Dec-22 13:40 0.383918 AU
57433260 km
7.62 km/s
2050-Sep-21 05:17 0.309051 AU
46233361 km
15.65 km/s
2056-Feb-02 00:13 0.315497 AU
47197698 km
6.37 km/s
2056-Aug-21 09:23 0.083865 AU
12545985 km
4.61 km/s
2062-Apr-04 11:14 0.023766 AU
3555328 km
6.76 km/s
2062-Nov-17 17:43 0.342986 AU
51309937 km
6.81 km/s
2068-Mar-12 22:54 0.455850 AU
68194243 km
20.09 km/s
2069-Jan-01 05:09 0.376127 AU
56267823 km
7.50 km/s
2069-Sep-16 04:32 0.199864 AU
29899189 km
12.44 km/s
2075-Feb-25 03:50 0.242684 AU
36305025 km
4.90 km/s
2075-Jun-23 07:13 0.148178 AU
22167118 km
5.62 km/s
2075-Oct-11 08:59 0.235754 AU
35268255 km
4.58 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
24.06

Orbit Quality

RMS
0.39213
Condition
0
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.