SpaceAtlas Space Object Data
NASA JPL SBDB · 2010 LL68

2010 LL68

2010 LL68 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 2.072 AU it takes 2.98 yr to circle the Sun.

Apollo Observations: 38
Orbital Period · P
2.98 yr
v(q)
37.1 km/s
v(Q)
11.6 km/s
Diameter · ≈
0.09 km
TJ
3.57
Eccentricity · e
0.5245

Orbit and dynamics

The path is an ellipse reaching 0.985 AU from the Sun at perihelion and 3.159 AU at aphelion, a radial span of 2.174 AU.

Applying Kepler's third law to a = 2.072 AU gives an orbital period of 2.98 yr, or about 1,089 days.

The high eccentricity (0.524) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

The orbital plane is tilted 10.49° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 37.1 km/s at perihelion and falls to 11.6 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

The measured diameter is 0.15 km, a value from direct size determination rather than from brightness alone.

Its geometric albedo of 0.063 indicates a very dark, carbonaceous-type surface.

Observation record and orbit quality

The current orbit solution is based on 38 observations and has a weighted RMS residual of 0.5394 arcseconds.

Condition code U = 5 indicates a moderately constrained orbit; predictions decades ahead still carry noticeable uncertainty.

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
2.072 AU
Eccentricity
0.5245
Perihelion
0.985 AU
Aphelion
3.158764 AU
Inclination
10.49°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
118.69°

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-04 09:55 0.465794 AU
69681859 km
23.03 km/s

Distances in astronomical units (AU) and kilometres. Source: NASA/JPL CNEOS Close Approach Data API.

Physical Parameters

Diameter
0.153 km
Albedo
0.063
Density
— g/cm³
Rotation Period
— h
Absolute Magnitude
22.88

Orbit Quality

RMS
0.53944
Condition
5
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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