SpaceAtlas Space Object Data
NASA JPL SBDB · 2022 UT27

2022 UT27

2022 UT27 is an Amor-type near-Earth asteroid that approaches Earth from beyond our orbit without crossing it, orbiting the Sun at 1.446 AU once every 1.74 yr.

Amor Observations: 19
Orbital Period · P
1.74 yr
v(q)
29.3 km/s
v(Q)
20.9 km/s
Diameter · ≈
0.07 km
TJ
4.62
Eccentricity · e
0.1668

Orbit and dynamics

The path is an ellipse reaching 1.205 AU from the Sun at perihelion and 1.687 AU at aphelion, a radial span of 0.482 AU.

Applying Kepler's third law to a = 1.446 AU gives an orbital period of 1.74 yr, or about 635 days.

An eccentricity of 0.167 makes the orbit moderately elongated.

The orbital plane is tilted 12.05° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 29.3 km/s at perihelion and falls to 20.9 km/s at aphelion.

Its perihelion lies just outside Earth's orbit, which is why it is classed as Earth-approaching rather than Earth-crossing.

Size and surface

No direct size measurement is available; from an absolute magnitude of H = 23.56 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.07 km.

Observation record and orbit quality

The current orbit solution is based on 19 observations and has a weighted RMS residual of 0.6841 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
1.446 AU
Eccentricity
0.1668
Perihelion
1.205 AU
Aphelion
1.687193 AU
Inclination
12.05°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
30.13°

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
2029-Dec-12 02:46 0.304371 AU
45533228 km
6.54 km/s
2037-Jan-05 22:06 0.422251 AU
63167817 km
6.60 km/s
2041-Jul-23 20:10 0.454887 AU
68050156 km
6.54 km/s
2048-Aug-21 14:31 0.389432 AU
58258173 km
3.71 km/s
2055-Oct-24 03:46 0.284246 AU
42522664 km
5.09 km/s
2062-Nov-21 16:06 0.242529 AU
36281839 km
6.24 km/s
2069-Dec-14 09:44 0.288295 AU
43128263 km
6.55 km/s
2077-Jan-08 03:48 0.403102 AU
60303168 km
6.58 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
23.56

Orbit Quality

RMS
0.6841
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

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