SpaceAtlas Space Object Data
NASA JPL SBDB · 2024 EF

2024 EF

2024 EF belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.146 AU it takes 1.23 yr to circle the Sun.

Apollo Observations: 63
Orbital Period · P
1.23 yr
v(q)
34.7 km/s
v(Q)
22.3 km/s
Diameter · ≈
0.01 km
TJ
5.45
Eccentricity · e
0.2168

Orbit and dynamics

Between its closest point (0.897 AU) and its farthest (1.394 AU), the heliocentric distance changes by 0.497 AU over every revolution.

One full revolution takes 1.23 yr (448 days), computed from the semi-major axis of 1.146 AU.

An eccentricity of 0.217 makes the orbit moderately elongated.

The orbital plane is tilted 9.1° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 34.7 km/s at perihelion and falls to 22.3 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 = 29.15 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.01 km.

Observation record and orbit quality

Astrometry from 63 individual observations underpins this orbit; the fit leaves an RMS residual of 0.4007 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
1.146 AU
Eccentricity
0.2168
Perihelion
0.897 AU
Aphelion
1.394453 AU
Inclination
9.1°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
262.59°

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
2029-Nov-17 08:23 0.436970 AU
65369735 km
7.83 km/s
2030-Aug-14 19:44 0.390907 AU
58478790 km
17.99 km/s
2035-Aug-21 20:26 0.193480 AU
28944151 km
5.79 km/s
2040-Feb-13 00:23 0.341265 AU
51052591 km
17.95 km/s
2040-Oct-27 04:01 0.421182 AU
63007944 km
7.98 km/s
2045-Dec-28 11:46 0.355696 AU
53211292 km
6.36 km/s
2046-Aug-02 16:36 0.105442 AU
15773968 km
7.98 km/s
2051-Feb-23 23:29 0.087047 AU
13022046 km
11.46 km/s
2051-Oct-06 04:08 0.360305 AU
53900932 km
7.61 km/s
2056-Dec-02 04:42 0.416752 AU
62345243 km
7.46 km/s
2057-Aug-08 21:31 0.209200 AU
31295909 km
13.84 km/s
2062-Sep-11 18:57 0.263740 AU
39454913 km
6.71 km/s
2067-Nov-08 14:02 0.434934 AU
65065133 km
7.98 km/s
2073-Jan-12 04:53 0.330348 AU
49419430 km
5.67 km/s
2073-Aug-04 03:28 0.124242 AU
18586320 km
6.12 km/s
2078-Feb-20 00:17 0.191681 AU
28675071 km
13.48 km/s
2078-Oct-12 17:54 0.390427 AU
58407026 km
7.79 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
29.15

Orbit Quality

RMS
0.40067
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.

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