SpaceAtlas Space Object Data
NASA JPL SBDB · 2022 SZ

2022 SZ

2022 SZ belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.172 AU it takes 1.27 yr to circle the Sun.

Apollo Observations: 23
Orbital Period · P
1.27 yr
v(q)
35.8 km/s
v(Q)
21.1 km/s
Diameter · ≈
0.02 km
TJ
5.35
Eccentricity · e
0.2589

Orbit and dynamics

Between its closest point (0.869 AU) and its farthest (1.475 AU), the heliocentric distance changes by 0.606 AU over every revolution.

One full revolution takes 1.27 yr (463 days), computed from the semi-major axis of 1.172 AU.

An eccentricity of 0.259 makes the orbit moderately elongated.

The orbital plane is tilted 8.25° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 35.8 km/s at perihelion and falls to 21.1 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 = 26.4 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.02 km.

Observation record and orbit quality

Astrometry from 23 individual observations underpins this orbit; the fit leaves an RMS residual of 0.5554 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
1.172 AU
Eccentricity
0.2589
Perihelion
0.869 AU
Aphelion
1.475431 AU
Inclination
8.25°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
281.41°

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-23 08:20 0.062587 AU
9362848 km
9.16 km/s
2074-Aug-09 07:35 0.326172 AU
48794674 km
6.28 km/s
2075-Feb-20 07:27 0.062921 AU
9412864 km
7.19 km/s
2079-Jun-20 10:12 0.479611 AU
71748751 km
8.13 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
26.4

Orbit Quality

RMS
0.55541
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.

Keep exploring

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