SpaceAtlas Space Object Data
NASA JPL SBDB · 2024 BY

2024 BY

2024 BY belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.34 AU it takes 1.55 yr to circle the Sun.

Apollo Observations: 41
Orbital Period · P
1.55 yr
v(q)
34.4 km/s
v(Q)
19.3 km/s
Diameter · ≈
0.02 km
TJ
4.86
Eccentricity · e
0.2819

Orbit and dynamics

Between its closest point (0.963 AU) and its farthest (1.718 AU), the heliocentric distance changes by 0.755 AU over every revolution.

One full revolution takes 1.55 yr (567 days), computed from the semi-major axis of 1.34 AU.

An eccentricity of 0.282 makes the orbit moderately elongated.

Its inclination of 1.27° keeps it close to the plane of the ecliptic.

By the vis-viva equation its orbital speed rises to 34.4 km/s at perihelion and falls to 19.3 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 = 26.32 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.02 km.

Observation record and orbit quality

Astrometry from 41 individual observations underpins this orbit; the fit leaves an RMS residual of 0.3368 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
1.34 AU
Eccentricity
0.2819
Perihelion
0.963 AU
Aphelion
1.717746 AU
Inclination
1.27°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
168.44°

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
2027-May-19 04:23 0.460398 AU
68874616 km
19.39 km/s
2038-Jan-11 02:05 0.134124 AU
20064640 km
11.70 km/s
2040-Nov-26 20:36 0.354622 AU
53050714 km
5.66 km/s
2041-May-07 04:51 0.177800 AU
26598562 km
13.26 km/s
2051-Dec-31 06:24 0.298310 AU
44626475 km
18.15 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
26.32

Orbit Quality

RMS
0.33681
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.