SpaceAtlas Space Object Data
NASA JPL SBDB · 2022 WB1

2022 WB1

2022 WB1 is an Amor-type near-Earth asteroid that approaches Earth from beyond our orbit without crossing it, orbiting the Sun at 1.552 AU once every 1.93 yr.

Amor Observations: 100
Orbital Period · P
1.93 yr
v(q)
34.2 km/s
v(Q)
16.7 km/s
Diameter · ≈
0.08 km
TJ
4.34
Eccentricity · e
0.3424

Orbit and dynamics

Between its closest point (1.02 AU) and its farthest (2.083 AU), the heliocentric distance changes by 1.063 AU over every revolution.

One full revolution takes 1.93 yr (706 days), computed from the semi-major axis of 1.552 AU.

An eccentricity of 0.342 makes the orbit moderately elongated.

The orbital plane is tilted 16.7° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 34.2 km/s at perihelion and falls to 16.7 km/s at aphelion.

Its perihelion lies just outside Earth's orbit, which is why it is classed as Earth-approaching rather than Earth-crossing.

Size and surface

No direct size measurement is available; from an absolute magnitude of H = 23.37 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.08 km.

Observation record and orbit quality

Astrometry from 100 individual observations underpins this orbit; the fit leaves an RMS residual of 0.5237 arcseconds.

Condition code U = 6 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
1.552 AU
Eccentricity
0.3424
Perihelion
1.02 AU
Aphelion
2.083405 AU
Inclination
16.7°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
312.86°

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

Predicted close approaches to Earth, from NASA's Center for Near-Earth Object Studies (CNEOS).

Date (UTC)Miss distanceVelocity
2049-Dec-09 04:11 0.351382 AU
52565939 km
19.30 km/s
2051-Nov-18 11:11 0.064347 AU
9626233 km
10.39 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
23.37

Orbit Quality

RMS
0.52368
Condition
6
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

Explore asteroids, comets and near-Earth objects with JPL orbital data.