SpaceAtlas Space Object Data
NASA JPL SBDB · 889882

889882

889882 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.504 AU it takes 1.84 yr to circle the Sun.

Apollo Observations: 99
Orbital Period · P
1.84 yr
v(q)
35.9 km/s
v(Q)
16.4 km/s
Diameter · ≈
0.25 km
TJ
4.41
Eccentricity · e
0.372

Orbit and dynamics

The path is an ellipse reaching 0.945 AU from the Sun at perihelion and 2.063 AU at aphelion, a radial span of 1.118 AU.

Applying Kepler's third law to a = 1.504 AU gives an orbital period of 1.84 yr, or about 674 days.

An eccentricity of 0.372 makes the orbit moderately elongated.

The orbital plane is tilted 17.21° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 35.9 km/s at perihelion and falls to 16.4 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 = 20.77 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.25 km.

Observation record and orbit quality

The current orbit solution is based on 99 observations and has a weighted RMS residual of 0.4433 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
1.504 AU
Eccentricity
0.372
Perihelion
0.945 AU
Aphelion
2.063488 AU
Inclination
17.21°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
12.79°

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

No close approaches to Earth are currently on record for this object.

Physical Parameters

Diameter
— km
Albedo
—
Density
— g/cm³
Rotation Period
— h
Absolute Magnitude
20.77

Orbit Quality

RMS
0.44329
Condition
0
Orbit ID
—
Data source: NASA JPL Small-Body Database . 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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