SpaceAtlas Space Object Data
NASA JPL SBDB · 2022 WD1

2022 WD1

2022 WD1 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.242 AU it takes 1.38 yr to circle the Sun.

Apollo Observations: 16
Orbital Period · P
1.38 yr
v(q)
36.6 km/s
v(Q)
19.5 km/s
Diameter · ≈
0.02 km
TJ
5.06
Eccentricity · e
0.3036

Orbit and dynamics

Between its closest point (0.865 AU) and its farthest (1.619 AU), the heliocentric distance changes by 0.754 AU over every revolution.

One full revolution takes 1.38 yr (506 days), computed from the semi-major axis of 1.242 AU.

An eccentricity of 0.304 makes the orbit moderately elongated.

A steep inclination of 20.26° carries it well above and below the ecliptic plane.

By the vis-viva equation its orbital speed rises to 36.6 km/s at perihelion and falls to 19.5 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 = 25.78 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.02 km.

Observation record and orbit quality

Astrometry from 16 individual observations underpins this orbit; the fit leaves an RMS residual of 0.4842 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
1.242 AU
Eccentricity
0.3036
Perihelion
0.865 AU
Aphelion
1.619071 AU
Inclination
20.26°
Orbital Period
— yr
Epoch
2459899.5
Mean Anomaly
316.32°

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
2027-May-10 20:30 0.374472 AU
56020262 km
23.54 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
25.78

Orbit Quality

RMS
0.48422
Condition
8
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

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