SpaceAtlas Space Object Data
NASA JPL SBDB · 2022 WA

2022 WA

2022 WA belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.177 AU it takes 1.28 yr to circle the Sun.

Apollo Observations: 89
Orbital Period · P
1.28 yr
v(q)
48.3 km/s
v(Q)
15.6 km/s
Diameter · ≈
0.02 km
TJ
5.23
Eccentricity · e
0.512

Orbit and dynamics

Between its closest point (0.574 AU) and its farthest (1.78 AU), the heliocentric distance changes by 1.206 AU over every revolution.

One full revolution takes 1.28 yr (466 days), computed from the semi-major axis of 1.177 AU.

The high eccentricity (0.512) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

The orbital plane is tilted 8.17° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 48.3 km/s at perihelion and falls to 15.6 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 = 26.79 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.02 km.

Observation record and orbit quality

Astrometry from 89 individual observations underpins this orbit; the fit leaves an RMS residual of 0.257 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
1.177 AU
Eccentricity
0.512
Perihelion
0.574 AU
Aphelion
1.779624 AU
Inclination
8.17°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
238.44°

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
2028-Feb-17 17:20 0.421447 AU
63047616 km
17.90 km/s
2031-Nov-01 18:54 0.336096 AU
50279320 km
27.41 km/s
2038-Jul-04 12:10 0.350597 AU
52448554 km
27.68 km/s
2042-Mar-21 10:53 0.407967 AU
61030928 km
17.51 km/s
2045-Nov-14 00:58 0.022567 AU
3375934 km
18.91 km/s
2047-Jun-16 15:15 0.073538 AU
11001188 km
16.71 km/s
2054-Oct-27 17:46 0.374886 AU
56082163 km
30.70 km/s
2059-Nov-26 05:02 0.040685 AU
6086464 km
11.12 km/s
2061-Jun-29 03:43 0.166751 AU
24945539 km
24.39 km/s
2068-Nov-08 18:06 0.086844 AU
12991644 km
22.39 km/s
2070-Jun-10 09:29 0.074188 AU
11098355 km
13.60 km/s
2073-Nov-02 17:03 0.389515 AU
58270663 km
10.17 km/s
2074-Jan-22 05:46 0.357246 AU
53443203 km
14.83 km/s
2079-Apr-11 00:50 0.375845 AU
56225639 km
15.22 km/s
2079-Jul-02 08:43 0.460502 AU
68890149 km
9.47 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
26.79

Orbit Quality

RMS
0.25699
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.