SpaceAtlas Space Object Data
NASA JPL SBDB · 2010 CF55

2010 CF55

2010 CF55 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.9 AU it takes 2.62 yr to circle the Sun.

Apollo Observations: 22
Orbital Period · P
2.62 yr
v(q)
58.7 km/s
v(Q)
8 km/s
Diameter · ≈
0.16 km
TJ
3.52
Eccentricity · e
0.7612

Orbit and dynamics

The path is an ellipse reaching 0.454 AU from the Sun at perihelion and 3.346 AU at aphelion, a radial span of 2.892 AU.

Applying Kepler's third law to a = 1.9 AU gives an orbital period of 2.62 yr, or about 957 days.

The high eccentricity (0.761) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

The orbital plane is tilted 5.15° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 58.7 km/s at perihelion and falls to 8 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 0.18 km, a value from direct size determination rather than from brightness alone.

A geometric albedo of 0.119 points to a comparatively bright, reflective surface.

Observation record and orbit quality

The current orbit solution is based on 22 observations and has a weighted RMS residual of 0.4588 arcseconds.

Condition code U = 8 signals a poorly constrained orbit, so its future path should be treated as provisional.

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
1.9 AU
Eccentricity
0.7612
Perihelion
0.454 AU
Aphelion
3.34628 AU
Inclination
5.15°
Orbital Period
— yr
Epoch
2455246.5
Mean Anomaly
331.86°

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
0.176 km
Albedo
0.119
Density
— g/cm³
Rotation Period
— h
Absolute Magnitude
21.68

Orbit Quality

RMS
0.45884
Condition
8
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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