SpaceAtlas Space Object Data
NASA JPL SBDB · 2022 AL3

2022 AL3

2022 AL3 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.061 AU it takes 1.09 yr to circle the Sun.

Apollo Observations: 55
Orbital Period · P
1.09 yr
v(q)
56.5 km/s
v(Q)
14.8 km/s
Diameter · ≈
0.14 km
TJ
5.61
Eccentricity · e
0.584

Orbit and dynamics

Between its closest point (0.441 AU) and its farthest (1.681 AU), the heliocentric distance changes by 1.24 AU over every revolution.

One full revolution takes 1.09 yr (399 days), computed from the semi-major axis of 1.061 AU.

The high eccentricity (0.584) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

The orbital plane is tilted 16.82° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 56.5 km/s at perihelion and falls to 14.8 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 = 21.96 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.14 km.

Observation record and orbit quality

Astrometry from 55 individual observations underpins this orbit; the fit leaves an RMS residual of 0.5294 arcseconds.

Condition code U = 1 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
1.061 AU
Eccentricity
0.584
Perihelion
0.441 AU
Aphelion
1.680624 AU
Inclination
16.82°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
282.54°

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
2033-Jan-29 09:51 0.259970 AU
38890912 km
26.11 km/s
2034-Jan-31 10:33 0.351887 AU
52641543 km
14.36 km/s
2037-Sep-20 23:27 0.376839 AU
56374316 km
13.01 km/s
2038-Oct-26 15:52 0.420821 AU
62953975 km
28.84 km/s
2045-Feb-01 11:28 0.199500 AU
29844706 km
23.54 km/s
2046-Jan-26 23:15 0.409052 AU
61193368 km
14.46 km/s
2046-Apr-03 14:31 0.485921 AU
72692696 km
14.26 km/s
2049-Oct-03 05:58 0.329644 AU
49313977 km
14.64 km/s
2050-Oct-30 14:47 0.482460 AU
72174976 km
31.43 km/s
2057-Feb-04 01:13 0.162092 AU
24248595 km
21.18 km/s
2058-Jan-22 17:03 0.457446 AU
68432955 km
14.72 km/s
2061-Oct-07 22:29 0.300236 AU
44914707 km
16.88 km/s
2069-Feb-05 21:57 0.158390 AU
23694789 km
19.12 km/s
2070-Jan-18 22:42 0.497885 AU
74482548 km
14.98 km/s
2073-Oct-11 20:35 0.289209 AU
43265072 km
19.15 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
21.96

Orbit Quality

RMS
0.52945
Condition
1
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.