SpaceAtlas Space Object Data
NASA JPL SBDB · 2006 WB

2006 WB

2006 WB is an Aten-type near-Earth asteroid whose orbit lies mostly inside that of Earth, with a semi-major axis of 0.854 AU and a period of 0.79 yr.

Aten Observations: 330
Orbital Period · P
0.79 yr
v(q)
38.5 km/s
v(Q)
27 km/s
Diameter · ≈
0.08 km
TJ
6.89
Eccentricity · e
0.1765

Orbit and dynamics

The path is an ellipse reaching 0.703 AU from the Sun at perihelion and 1.005 AU at aphelion, a radial span of 0.302 AU.

Applying Kepler's third law to a = 0.854 AU gives an orbital period of 0.79 yr, or about 288 days.

An eccentricity of 0.176 makes the orbit moderately elongated.

Its inclination of 4.9° keeps it close to the plane of the ecliptic.

By the vis-viva equation its orbital speed rises to 38.5 km/s at perihelion and falls to 27 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 = 23.18 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.08 km.

Observation record and orbit quality

The current orbit solution is based on 330 observations and has a weighted RMS residual of 0.3398 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
0.8541 AU
Eccentricity
0.1765
Perihelion
0.703 AU
Aphelion
1.004849 AU
Inclination
4.9°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
186.6°

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
2039-Nov-04 01:45 0.042051 AU
6290753 km
4.07 km/s
2043-Dec-11 02:16 0.114844 AU
17180359 km
7.53 km/s
2058-Oct-12 05:25 0.176827 AU
26452917 km
8.96 km/s
2062-Nov-13 04:30 0.030845 AU
4614363 km
3.97 km/s
2066-Dec-09 22:26 0.151480 AU
22661115 km
8.63 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
23.18

Orbit Quality

RMS
0.33981
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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