SpaceAtlas Space Object Data
NASA JPL SBDB · 482505

482505

482505 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.201 AU it takes 1.32 yr to circle the Sun.

Apollo Observations: 449
Orbital Period · P
1.32 yr
v(q)
40.7 km/s
v(Q)
18.1 km/s
Diameter · ≈
0.44 km
TJ
5.2
Eccentricity · e
0.3835

Orbit and dynamics

The path is an ellipse reaching 0.74 AU from the Sun at perihelion and 1.662 AU at aphelion, a radial span of 0.922 AU.

Applying Kepler's third law to a = 1.201 AU gives an orbital period of 1.32 yr, or about 481 days.

An eccentricity of 0.384 makes the orbit moderately elongated.

The orbital plane is tilted 11.38° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 40.7 km/s at perihelion and falls to 18.1 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 = 19.54 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.44 km.

Observation record and orbit quality

The current orbit solution is based on 449 observations and has a weighted RMS residual of 0.3919 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
1.201 AU
Eccentricity
0.3835
Perihelion
0.74 AU
Aphelion
1.661584 AU
Inclination
11.38°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
14.85°

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
2034-Jun-07 22:18 0.096626 AU
14455065 km
13.66 km/s
2045-Dec-14 22:24 0.134380 AU
20102939 km
10.09 km/s
2063-Jun-05 12:47 0.084361 AU
12620186 km
12.81 km/s
2078-Dec-12 00:53 0.115474 AU
17274670 km
13.52 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
19.54

Orbit Quality

RMS
0.39188
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

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