SpaceAtlas Space Object Data
NASA JPL SBDB · 2010 AF30

2010 AF30

2010 AF30 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.325 AU it takes 1.53 yr to circle the Sun.

Apollo Observations: 98
Orbital Period · P
1.53 yr
v(q)
38.2 km/s
v(Q)
17.5 km/s
Diameter · ≈
0.16 km
TJ
4.86
Eccentricity · e
0.3718

Orbit and dynamics

The path is an ellipse reaching 0.832 AU from the Sun at perihelion and 1.818 AU at aphelion, a radial span of 0.986 AU.

Applying Kepler's third law to a = 1.325 AU gives an orbital period of 1.53 yr, or about 557 days.

An eccentricity of 0.372 makes the orbit moderately elongated.

Its inclination of 3.06° keeps it close to the plane of the ecliptic.

By the vis-viva equation its orbital speed rises to 38.2 km/s at perihelion and falls to 17.5 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 = 21.73 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.16 km.

Observation record and orbit quality

The current orbit solution is based on 98 observations and has a weighted RMS residual of 0.5126 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
1.325 AU
Eccentricity
0.3718
Perihelion
0.832 AU
Aphelion
1.817635 AU
Inclination
3.06°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
198.68°

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
2033-Feb-02 05:21 0.476960 AU
71352192 km
24.36 km/s
2036-Feb-18 07:22 0.171363 AU
25635601 km
15.00 km/s
2039-Mar-27 09:23 0.130851 AU
19574995 km
7.70 km/s
2039-Aug-29 13:26 0.484692 AU
72508858 km
7.27 km/s
2042-Jan-22 15:39 0.444407 AU
66482324 km
7.01 km/s
2042-Jun-06 06:02 0.156070 AU
23347785 km
8.26 km/s
2045-Jul-25 10:17 0.106387 AU
15915287 km
12.94 km/s
2048-Aug-11 02:39 0.408649 AU
61133079 km
22.02 km/s
2065-Feb-10 21:09 0.302963 AU
45322662 km
19.05 km/s
2068-Mar-02 20:53 0.055491 AU
8301309 km
9.51 km/s
2071-Feb-08 16:39 0.365300 AU
54648119 km
4.56 km/s
2071-May-12 19:17 0.176869 AU
26459218 km
8.90 km/s
2074-Jul-18 04:57 0.043685 AU
6535168 km
10.11 km/s
2077-Aug-06 23:33 0.317265 AU
47462177 km
19.30 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
21.73

Orbit Quality

RMS
0.51262
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.