SpaceAtlas Space Object Data
NASA JPL SBDB · 2022 TO2

2022 TO2

2022 TO2 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.99 AU it takes 2.81 yr to circle the Sun.

Apollo Observations: 24
Orbital Period · P
2.81 yr
v(q)
44 km/s
v(Q)
10.1 km/s
Diameter · ≈
0.26 km
TJ
3.47
Eccentricity · e
0.625

Orbit and dynamics

Between its closest point (0.746 AU) and its farthest (3.234 AU), the heliocentric distance changes by 2.488 AU over every revolution.

One full revolution takes 2.81 yr (1,025 days), computed from the semi-major axis of 1.99 AU.

The high eccentricity (0.625) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

A steep inclination of 27.25° carries it well above and below the ecliptic plane.

By the vis-viva equation its orbital speed rises to 44 km/s at perihelion and falls to 10.1 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 = 20.67 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.26 km.

Observation record and orbit quality

Astrometry from 24 individual observations underpins this orbit; the fit leaves an RMS residual of 0.3958 arcseconds.

Condition code U = 5 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
1.99 AU
Eccentricity
0.625
Perihelion
0.746 AU
Aphelion
3.23375 AU
Inclination
27.25°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
86.58°

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
2037-Jan-12 15:56 0.250976 AU
37545492 km
20.46 km/s
2051-Feb-13 18:40 0.168575 AU
25218434 km
22.21 km/s
2065-Mar-06 04:36 0.300848 AU
45006159 km
27.10 km/s
2067-Oct-08 03:09 0.464329 AU
69462591 km
19.20 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
20.67

Orbit Quality

RMS
0.39585
Condition
5
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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