SpaceAtlas Space Object Data
NASA JPL SBDB · 2008 XC2

2008 XC2

2008 XC2 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.965 AU it takes 2.75 yr to circle the Sun.

Apollo Observations: 66
Orbital Period · P
2.75 yr
v(q)
36.2 km/s
v(Q)
12.5 km/s
Diameter · ≈
0.07 km
TJ
3.72
Eccentricity · e
0.4883

Orbit and dynamics

Between its closest point (1.006 AU) and its farthest (2.925 AU), the heliocentric distance changes by 1.919 AU over every revolution.

One full revolution takes 2.75 yr (1,006 days), computed from the semi-major axis of 1.965 AU.

The high eccentricity (0.488) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

Its inclination of 4.05° keeps it close to the plane of the ecliptic.

By the vis-viva equation its orbital speed rises to 36.2 km/s at perihelion and falls to 12.5 km/s at aphelion.

Size and surface

No direct size measurement is available; from an absolute magnitude of H = 23.5 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.07 km.

Observation record and orbit quality

Astrometry from 66 individual observations underpins this orbit; the fit leaves an RMS residual of 0.528 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
1.965 AU
Eccentricity
0.4883
Perihelion
1.006 AU
Aphelion
2.92451 AU
Inclination
4.05°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
142.65°

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
2030-Dec-05 22:09 0.206187 AU
30845136 km
13.10 km/s
2041-Dec-16 19:31 0.378373 AU
56603822 km
18.43 km/s
2077-Aug-25 04:54 0.450893 AU
67452608 km
20.19 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
23.5

Orbit Quality

RMS
0.52803
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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