SpaceAtlas Space Object Data
NASA JPL SBDB · 2022 RB2

2022 RB2

2022 RB2 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.354 AU it takes 1.58 yr to circle the Sun.

Apollo Observations: 43
Orbital Period · P
1.58 yr
v(q)
37.8 km/s
v(Q)
17.3 km/s
Diameter · ≈
0.01 km
TJ
4.76
Eccentricity · e
0.3719

Orbit and dynamics

The path is an ellipse reaching 0.85 AU from the Sun at perihelion and 1.858 AU at aphelion, a radial span of 1.008 AU.

Applying Kepler's third law to a = 1.354 AU gives an orbital period of 1.58 yr, or about 575 days.

An eccentricity of 0.372 makes the orbit moderately elongated.

The orbital plane is tilted 15.16° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 37.8 km/s at perihelion and falls to 17.3 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 = 27.5 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.01 km.

Observation record and orbit quality

The current orbit solution is based on 43 observations and has a weighted RMS residual of 0.2452 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
1.354 AU
Eccentricity
0.3719
Perihelion
0.85 AU
Aphelion
1.857553 AU
Inclination
15.16°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
170.89°

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-Apr-03 03:09 0.197337 AU
29521159 km
15.69 km/s
2033-Sep-14 09:54 0.100905 AU
15095160 km
17.32 km/s
2041-Apr-07 15:51 0.183460 AU
27445266 km
11.07 km/s
2044-Sep-23 15:37 0.215213 AU
32195345 km
22.38 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
27.5

Orbit Quality

RMS
0.24523
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.