SpaceAtlas Space Object Data
NASA JPL SBDB · 2008 CE5

2008 CE5

2008 CE5 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.083 AU it takes 1.13 yr to circle the Sun.

Apollo Observations: 96
Orbital Period · P
1.13 yr
v(q)
63.6 km/s
v(Q)
12.9 km/s
Diameter · ≈
0.22 km
TJ
5.42
Eccentricity · e
0.663

Orbit and dynamics

Between its closest point (0.365 AU) and its farthest (1.801 AU), the heliocentric distance changes by 1.436 AU over every revolution.

One full revolution takes 1.13 yr (412 days), computed from the semi-major axis of 1.083 AU.

The high eccentricity (0.663) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

A steep inclination of 25.96° carries it well above and below the ecliptic plane.

By the vis-viva equation its orbital speed rises to 63.6 km/s at perihelion and falls to 12.9 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 = 21.02 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.22 km.

Observation record and orbit quality

Astrometry from 96 individual observations underpins this orbit; the fit leaves an RMS residual of 0.6492 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
1.083 AU
Eccentricity
0.663
Perihelion
0.365 AU
Aphelion
1.801029 AU
Inclination
25.96°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
184.78°

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
2044-Jan-17 12:22 0.179329 AU
26827212 km
22.93 km/s
2053-Jan-18 21:00 0.183195 AU
27405592 km
25.16 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
21.02

Orbit Quality

RMS
0.64924
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.

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