SpaceAtlas Space Object Data
NASA JPL SBDB · 86819

86819

86819 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.996 AU it takes 2.82 yr to circle the Sun.

Apollo Observations: 864
Orbital Period · P
2.82 yr
v(q)
36.8 km/s
v(Q)
12.1 km/s
Diameter · ≈
1.13 km
TJ
3.66
Eccentricity · e
0.5058

Orbit and dynamics

Between its closest point (0.986 AU) and its farthest (3.006 AU), the heliocentric distance changes by 2.02 AU over every revolution.

One full revolution takes 2.82 yr (1,030 days), computed from the semi-major axis of 1.996 AU.

The high eccentricity (0.506) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

The orbital plane is tilted 10.06° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 36.8 km/s at perihelion and falls to 12.1 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 0.8 km, a value from direct size determination rather than from brightness alone.

A geometric albedo of 0.301 points to a comparatively bright, reflective surface.

Observation record and orbit quality

Astrometry from 864 individual observations underpins this orbit; the fit leaves an RMS residual of 0.5173 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
1.996 AU
Eccentricity
0.5058
Perihelion
0.986 AU
Aphelion
3.005577 AU
Inclination
10.06°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
62.28°

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
0.802 km
Albedo
0.301
Density
— g/cm³
Rotation Period
— h
Absolute Magnitude
17.48

Orbit Quality

RMS
0.51729
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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