SpaceAtlas Space Object Data
NASA JPL SBDB · 219071

219071

219071 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.053 AU it takes 1.08 yr to circle the Sun.

Apollo Observations: 3,376
Orbital Period · P
1.08 yr
v(q)
38.8 km/s
v(Q)
21.7 km/s
Diameter · ≈
1.29 km
TJ
5.75
Eccentricity · e
0.282

Orbit and dynamics

The path is an ellipse reaching 0.756 AU from the Sun at perihelion and 1.35 AU at aphelion, a radial span of 0.594 AU.

Applying Kepler's third law to a = 1.053 AU gives an orbital period of 1.08 yr, or about 395 days.

An eccentricity of 0.282 makes the orbit moderately elongated.

A steep inclination of 20.02° carries it well above and below the ecliptic plane.

By the vis-viva equation its orbital speed rises to 38.8 km/s at perihelion and falls to 21.7 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 0.66 km, a value from direct size determination rather than from brightness alone.

A geometric albedo of 0.383 points to a comparatively bright, reflective surface.

Observation record and orbit quality

The current orbit solution is based on 3,376 observations and has a weighted RMS residual of 0.3384 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
1.053 AU
Eccentricity
0.282
Perihelion
0.756 AU
Aphelion
1.349946 AU
Inclination
20.02°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
4.76°

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
0.657 km
Albedo
0.383
Density
— g/cm³
Rotation Period
— h
Absolute Magnitude
17.2

Orbit Quality

RMS
0.3384
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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