SpaceAtlas Space Object Data
NASA JPL SBDB · 2024 TZ

2024 TZ

2024 TZ belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.016 AU it takes 1.02 yr to circle the Sun.

Apollo Observations: 33
Orbital Period · P
1.02 yr
v(q)
56.5 km/s
v(Q)
15.5 km/s
Diameter · ≈
0.08 km
TJ
5.79
Eccentricity · e
0.5701

Orbit and dynamics

The path is an ellipse reaching 0.437 AU from the Sun at perihelion and 1.595 AU at aphelion, a radial span of 1.158 AU.

Applying Kepler's third law to a = 1.016 AU gives an orbital period of 1.02 yr, or about 374 days.

The high eccentricity (0.57) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

A steep inclination of 22.91° carries it well above and below the ecliptic plane.

By the vis-viva equation its orbital speed rises to 56.5 km/s at perihelion and falls to 15.5 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 = 23.32 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.08 km.

Observation record and orbit quality

The current orbit solution is based on 33 observations and has a weighted RMS residual of 0.6092 arcseconds.

Condition code U = 7 signals a poorly constrained orbit, so its future path should be treated as provisional.

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
1.016 AU
Eccentricity
0.5701
Perihelion
0.437 AU
Aphelion
1.595222 AU
Inclination
22.91°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
298.63°

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-Oct-12 07:06 0.337406 AU
50475180 km
30.41 km/s
2028-Oct-17 01:48 0.454757 AU
68030618 km
34.60 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
23.32

Orbit Quality

RMS
0.60924
Condition
7
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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