SpaceAtlas Space Object Data
NASA JPL SBDB · 2016 AA10

2016 AA10

2016 AA10 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.879 AU it takes 2.58 yr to circle the Sun.

Apollo Observations: 105
Orbital Period · P
2.58 yr
v(q)
38.1 km/s
v(Q)
12.4 km/s
Diameter · ≈
0.31 km
TJ
3.78
Eccentricity · e
0.5091

Orbit and dynamics

The path is an ellipse reaching 0.923 AU from the Sun at perihelion and 2.836 AU at aphelion, a radial span of 1.913 AU.

Applying Kepler's third law to a = 1.879 AU gives an orbital period of 2.58 yr, or about 941 days.

The high eccentricity (0.509) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

The orbital plane is tilted 12.66° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 38.1 km/s at perihelion and falls to 12.4 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

The measured diameter is 0.27 km, a value from direct size determination rather than from brightness alone.

A geometric albedo of 0.2 points to a comparatively bright, reflective surface.

Observation record and orbit quality

The current orbit solution is based on 105 observations and has a weighted RMS residual of 0.5179 arcseconds.

Condition code U = 1 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
1.879 AU
Eccentricity
0.5091
Perihelion
0.923 AU
Aphelion
2.835599 AU
Inclination
12.66°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
31.8°

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
0.271 km
Albedo
0.2
Density
— g/cm³
Rotation Period
— h
Absolute Magnitude
20.29

Orbit Quality

RMS
0.51789
Condition
1
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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