SpaceAtlas Space Object Data
NASA JPL SBDB · 414287

414287

414287 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 3.201 AU it takes 5.73 yr to circle the Sun.

Apollo Observations: 329
Orbital Period · P
5.73 yr
v(q)
45.1 km/s
v(Q)
6.2 km/s
Diameter · ≈
1.01 km
TJ
2.62
Eccentricity · e
0.7597

Orbit and dynamics

The path is an ellipse reaching 0.769 AU from the Sun at perihelion and 5.633 AU at aphelion, a radial span of 4.864 AU.

Applying Kepler's third law to a = 3.201 AU gives an orbital period of 5.73 yr, or about 2,092 days.

The high eccentricity (0.76) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

The orbital plane is tilted 13.5° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 45.1 km/s at perihelion and falls to 6.2 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 1.97 km, a value from direct size determination rather than from brightness alone.

Its geometric albedo of 0.038 indicates a very dark, carbonaceous-type surface.

Observation record and orbit quality

The current orbit solution is based on 329 observations and has a weighted RMS residual of 0.4675 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
3.201 AU
Eccentricity
0.7597
Perihelion
0.769 AU
Aphelion
5.6328 AU
Inclination
13.5°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
5.94°

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
2032-Mar-05 07:05 0.362544 AU
54235738 km
27.24 km/s
2054-Oct-09 11:19 0.048479 AU
7252393 km
20.34 km/s
2071-Nov-26 21:44 0.254250 AU
38035282 km
15.47 km/s

Distances in astronomical units (AU) and kilometres. Source: NASA/JPL CNEOS Close Approach Data API.

Physical Parameters

Diameter
1.974 km
Albedo
0.038
Density
— g/cm³
Rotation Period
— h
Absolute Magnitude
17.73

Orbit Quality

RMS
0.46747
Condition
0
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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