SpaceAtlas Space Object Data
NASA JPL SBDB · 882845

882845

882845 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 2.649 AU it takes 4.31 yr to circle the Sun.

Apollo Observations: 105
Orbital Period · P
4.31 yr
v(q)
37.7 km/s
v(Q)
8.9 km/s
Diameter · ≈
0.69 km
TJ
3.06
Eccentricity · e
0.6184

Orbit and dynamics

The path is an ellipse reaching 1.011 AU from the Sun at perihelion and 4.287 AU at aphelion, a radial span of 3.276 AU.

Applying Kepler's third law to a = 2.649 AU gives an orbital period of 4.31 yr, or about 1,575 days.

The high eccentricity (0.618) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

The orbital plane is tilted 12.35° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 37.7 km/s at perihelion and falls to 8.9 km/s at aphelion.

Size and surface

No direct size measurement is available; from an absolute magnitude of H = 18.56 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.69 km.

Observation record and orbit quality

The current orbit solution is based on 105 observations and has a weighted RMS residual of 0.5743 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
2.649 AU
Eccentricity
0.6184
Perihelion
1.011 AU
Aphelion
4.287142 AU
Inclination
12.35°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
98.67°

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
2042-Jul-09 13:13 0.089282 AU
13356349 km
12.05 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
18.56

Orbit Quality

RMS
0.57426
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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