SpaceAtlas Space Object Data
NASA JPL SBDB · 2025 UT5

2025 UT5

2025 UT5 is an Aten-type near-Earth asteroid whose orbit lies mostly inside that of Earth, with a semi-major axis of 0.869 AU and a period of 0.81 yr.

Aten Observations: 99
Orbital Period · P
0.81 yr
v(q)
37.1 km/s
v(Q)
27.6 km/s
Diameter · ≈
0.01 km
TJ
6.8
Eccentricity · e
0.1471

Orbit and dynamics

Between its closest point (0.741 AU) and its farthest (0.996 AU), the heliocentric distance changes by 0.255 AU over every revolution.

One full revolution takes 0.81 yr (296 days), computed from the semi-major axis of 0.869 AU.

An eccentricity of 0.147 makes the orbit moderately elongated.

Its inclination of 2.06° keeps it close to the plane of the ecliptic.

By the vis-viva equation its orbital speed rises to 37.1 km/s at perihelion and falls to 27.6 km/s at aphelion.

Size and surface

No direct size measurement is available; from an absolute magnitude of H = 26.95 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.01 km.

Observation record and orbit quality

Astrometry from 99 individual observations underpins this orbit; the fit leaves an RMS residual of 0.5061 arcseconds.

Condition code U = 4 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
0.8685 AU
Eccentricity
0.1471
Perihelion
0.741 AU
Aphelion
0.996256 AU
Inclination
2.06°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
97.4°

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
2042-Oct-04 07:07 0.040363 AU
6038235 km
3.91 km/s
2055-Sep-30 10:52 0.082579 AU
12353634 km
5.51 km/s
2056-Jan-30 03:55 0.166325 AU
24881879 km
2.95 km/s
2064-Jul-24 08:03 0.178086 AU
26641360 km
3.18 km/s
2064-Nov-27 11:23 0.109508 AU
16382142 km
6.32 km/s
2077-Nov-26 05:17 0.047043 AU
7037580 km
4.41 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
26.95

Orbit Quality

RMS
0.50613
Condition
4
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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