SpaceAtlas Space Object Data
NASA JPL SBDB · 886371

886371

886371 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 2.442 AU it takes 3.82 yr to circle the Sun.

Apollo Observations: 97
Orbital Period · P
3.82 yr
v(q)
42.6 km/s
v(Q)
8.5 km/s
Diameter · ≈
0.76 km
TJ
2.91
Eccentricity · e
0.6668

Orbit and dynamics

The path is an ellipse reaching 0.814 AU from the Sun at perihelion and 4.07 AU at aphelion, a radial span of 3.256 AU.

Applying Kepler's third law to a = 2.442 AU gives an orbital period of 3.82 yr, or about 1,394 days.

The high eccentricity (0.667) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

A steep inclination of 40.32° carries it well above and below the ecliptic plane.

By the vis-viva equation its orbital speed rises to 42.6 km/s at perihelion and falls to 8.5 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 = 18.34 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.76 km.

Observation record and orbit quality

The current orbit solution is based on 97 observations and has a weighted RMS residual of 0.505 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
2.442 AU
Eccentricity
0.6668
Perihelion
0.814 AU
Aphelion
4.070326 AU
Inclination
40.32°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
123.81°

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
18.34

Orbit Quality

RMS
0.50502
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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