SpaceAtlas Space Object Data
NASA JPL SBDB · 2016 UZ41

2016 UZ41

2016 UZ41 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 2.242 AU it takes 3.36 yr to circle the Sun.

Apollo Observations: 104
Orbital Period · P
3.36 yr
v(q)
38.5 km/s
v(Q)
10.3 km/s
Diameter · ≈
0.3 km
TJ
3.37
Eccentricity · e
0.5788

Orbit and dynamics

The path is an ellipse reaching 0.944 AU from the Sun at perihelion and 3.54 AU at aphelion, a radial span of 2.596 AU.

Applying Kepler's third law to a = 2.242 AU gives an orbital period of 3.36 yr, or about 1,226 days.

The high eccentricity (0.579) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

The orbital plane is tilted 12.2° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 38.5 km/s at perihelion and falls to 10.3 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 = 20.38 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.3 km.

Observation record and orbit quality

The current orbit solution is based on 104 observations and has a weighted RMS residual of 0.5801 arcseconds.

Condition code U = 0 means the orbit is very well determined, leaving only a small uncertainty in the future ephemeris.

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
2.242 AU
Eccentricity
0.5788
Perihelion
0.944 AU
Aphelion
3.53967 AU
Inclination
12.2°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
333.85°

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

No close approaches to Earth are currently on record for this object.

Physical Parameters

Diameter
— km
Albedo
—
Density
— g/cm³
Rotation Period
— h
Absolute Magnitude
20.38

Orbit Quality

RMS
0.58009
Condition
0
Orbit ID
—
Data source: NASA JPL Small-Body Database . 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.

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