SpaceAtlas Space Object Data
NASA JPL SBDB · 662564

662564

662564 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.084 AU it takes 1.13 yr to circle the Sun.

Apollo Observations: 142
Orbital Period · P
1.13 yr
v(q)
63 km/s
v(Q)
13 km/s
Diameter · ≈
0.43 km
TJ
5.31
Eccentricity · e
0.658

Orbit and dynamics

The path is an ellipse reaching 0.371 AU from the Sun at perihelion and 1.797 AU at aphelion, a radial span of 1.426 AU.

Applying Kepler's third law to a = 1.084 AU gives an orbital period of 1.13 yr, or about 412 days.

The high eccentricity (0.658) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

A steep inclination of 42.5° carries it well above and below the ecliptic plane.

By the vis-viva equation its orbital speed rises to 63 km/s at perihelion and falls to 13 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 = 19.59 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.43 km.

Observation record and orbit quality

The current orbit solution is based on 142 observations and has a weighted RMS residual of 0.5746 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
1.084 AU
Eccentricity
0.658
Perihelion
0.371 AU
Aphelion
1.797272 AU
Inclination
42.5°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
21.59°

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
2033-Apr-18 07:21 0.262593 AU
39283299 km
29.54 km/s
2041-Apr-15 12:13 0.434169 AU
64950762 km
21.60 km/s
2042-Apr-23 00:54 0.348638 AU
52155431 km
33.08 km/s
2050-Apr-13 22:42 0.344525 AU
51540169 km
22.37 km/s
2051-Apr-28 13:21 0.456890 AU
68349819 km
36.88 km/s
2059-Apr-13 21:00 0.265315 AU
39690524 km
23.87 km/s
2068-Apr-14 15:18 0.224635 AU
33604944 km
26.16 km/s
2077-Apr-18 00:52 0.252169 AU
37723876 km
29.13 km/s

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

Physical Parameters

Diameter
— km
Albedo
—
Density
— g/cm³
Rotation Period
— h
Absolute Magnitude
19.59

Orbit Quality

RMS
0.57459
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.

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