SpaceAtlas Space Object Data
NASA JPL SBDB · 2016 UO5

2016 UO5

2016 UO5 is an Aten-type near-Earth asteroid whose orbit lies mostly inside that of Earth, with a semi-major axis of 0.899 AU and a period of 0.85 yr.

Aten Observations: 32
Orbital Period · P
0.85 yr
v(q)
38.5 km/s
v(Q)
25.6 km/s
Diameter · ≈
0.02 km
TJ
6.6
Eccentricity · e
0.201

Orbit and dynamics

Between its closest point (0.719 AU) and its farthest (1.08 AU), the heliocentric distance changes by 0.361 AU over every revolution.

One full revolution takes 0.85 yr (312 days), computed from the semi-major axis of 0.899 AU.

An eccentricity of 0.201 makes the orbit moderately elongated.

The orbital plane is tilted 6.65° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 38.5 km/s at perihelion and falls to 25.6 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 = 25.8 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.02 km.

Observation record and orbit quality

Astrometry from 32 individual observations underpins this orbit; the fit leaves an RMS residual of 0.817 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
0.8994 AU
Eccentricity
0.201
Perihelion
0.719 AU
Aphelion
1.080179 AU
Inclination
6.65°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
288.4°

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
2027-Sep-16 06:47 0.305771 AU
45742634 km
14.59 km/s
2028-Apr-29 01:24 0.286226 AU
42818765 km
9.66 km/s
2028-Dec-07 10:58 0.265870 AU
39773558 km
13.85 km/s
2033-Sep-12 08:43 0.093516 AU
13989757 km
8.99 km/s
2034-Dec-01 04:41 0.387951 AU
58036597 km
19.68 km/s
2051-May-30 06:05 0.274586 AU
41077412 km
8.48 km/s
2051-Dec-10 05:53 0.100920 AU
15097347 km
8.05 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
25.8

Orbit Quality

RMS
0.81696
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

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