SpaceAtlas Space Object Data
NASA JPL SBDB · 2022 WH5

2022 WH5

2022 WH5 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.36 AU it takes 1.59 yr to circle the Sun.

Apollo Observations: 66
Orbital Period · P
1.59 yr
v(q)
34.2 km/s
v(Q)
19.1 km/s
Diameter · ≈
0.05 km
TJ
4.76
Eccentricity · e
0.2834

Orbit and dynamics

The path is an ellipse reaching 0.975 AU from the Sun at perihelion and 1.745 AU at aphelion, a radial span of 0.77 AU.

Applying Kepler's third law to a = 1.36 AU gives an orbital period of 1.59 yr, or about 579 days.

An eccentricity of 0.283 makes the orbit moderately elongated.

The orbital plane is tilted 17.84° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 34.2 km/s at perihelion and falls to 19.1 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 = 24.18 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.05 km.

Observation record and orbit quality

The current orbit solution is based on 66 observations and has a weighted RMS residual of 0.3952 arcseconds.

Condition code U = 7 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
1.36 AU
Eccentricity
0.2834
Perihelion
0.975 AU
Aphelion
1.745424 AU
Inclination
17.84°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
51.85°

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-Nov-15 16:15 0.288765 AU
43198613 km
19.75 km/s
2031-May-08 20:38 0.426965 AU
63873050 km
10.29 km/s
2042-Mar-16 19:47 0.317332 AU
47472234 km
9.25 km/s
2068-Dec-04 11:40 0.080153 AU
11990704 km
10.23 km/s
2069-Apr-05 00:16 0.318281 AU
47614098 km
8.50 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
24.18

Orbit Quality

RMS
0.39516
Condition
7
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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