SpaceAtlas Space Object Data
NASA JPL SBDB · 883081

883081

883081 is an Aten-type near-Earth asteroid whose orbit lies mostly inside that of Earth, with a semi-major axis of 0.822 AU and a period of 0.75 yr.

Aten Observations: 130
Orbital Period · P
0.75 yr
v(q)
54.9 km/s
v(Q)
19.7 km/s
Diameter · ≈
0.15 km
TJ
7
Eccentricity · e
0.4721

Orbit and dynamics

The path is an ellipse reaching 0.434 AU from the Sun at perihelion and 1.21 AU at aphelion, a radial span of 0.776 AU.

Applying Kepler's third law to a = 0.822 AU gives an orbital period of 0.75 yr, or about 272 days.

The high eccentricity (0.472) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

The orbital plane is tilted 16.68° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 54.9 km/s at perihelion and falls to 19.7 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 = 21.94 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.15 km.

Observation record and orbit quality

The current orbit solution is based on 130 observations and has a weighted RMS residual of 0.6167 arcseconds.

Condition code U = 1 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
0.8219 AU
Eccentricity
0.4721
Perihelion
0.434 AU
Aphelion
1.209919 AU
Inclination
16.68°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
4.27°

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
2028-May-22 10:26 0.149527 AU
22368973 km
12.25 km/s
2031-May-30 06:56 0.114736 AU
17164204 km
13.25 km/s
2034-Jun-01 16:26 0.131314 AU
19644365 km
15.45 km/s
2063-May-14 19:24 0.184433 AU
27590738 km
12.03 km/s
2066-May-24 04:00 0.144610 AU
21633350 km
12.32 km/s
2069-May-30 12:51 0.113543 AU
16985837 km
13.46 km/s
2072-Jun-01 09:53 0.138727 AU
20753334 km
15.78 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
21.94

Orbit Quality

RMS
0.61673
Condition
1
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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