SpaceAtlas Space Object Data
NASA JPL SBDB · 620058

620058

620058 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.993 AU it takes 2.81 yr to circle the Sun.

Apollo Observations: 77
Orbital Period · P
2.81 yr
v(q)
69.5 km/s
v(Q)
6.4 km/s
Diameter · ≈
0.41 km
TJ
3.27
Eccentricity · e
0.8316

Orbit and dynamics

The path is an ellipse reaching 0.336 AU from the Sun at perihelion and 3.65 AU at aphelion, a radial span of 3.314 AU.

Applying Kepler's third law to a = 1.993 AU gives an orbital period of 2.81 yr, or about 1,028 days.

The high eccentricity (0.832) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

The orbital plane is tilted 17.31° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 69.5 km/s at perihelion and falls to 6.4 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

No direct size measurement is available; from an absolute magnitude of H = 19.7 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.41 km.

Observation record and orbit quality

The current orbit solution is based on 77 observations and has a weighted RMS residual of 0.6849 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
1.993 AU
Eccentricity
0.8316
Perihelion
0.336 AU
Aphelion
3.650379 AU
Inclination
17.31°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
34.57°

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
2037-Apr-22 18:05 0.348464 AU
52129503 km
35.20 km/s
2045-Dec-19 16:57 0.339184 AU
50741238 km
22.07 km/s
2051-May-04 04:41 0.292581 AU
43769470 km
28.46 km/s
2059-Dec-29 02:33 0.230587 AU
34495289 km
28.00 km/s
2065-May-16 03:22 0.375322 AU
56147445 km
22.28 km/s
2074-Jan-10 08:04 0.325578 AU
48705762 km
36.74 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
19.7

Orbit Quality

RMS
0.68488
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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