SpaceAtlas Space Object Data
NASA JPL SBDB · 620061

620061

620061 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 2.098 AU it takes 3.04 yr to circle the Sun.

Apollo Observations: 82
Orbital Period · P
3.04 yr
v(q)
49.2 km/s
v(Q)
8.6 km/s
Diameter · ≈
0.26 km
TJ
3.37
Eccentricity · e
0.7021

Orbit and dynamics

Between its closest point (0.625 AU) and its farthest (3.571 AU), the heliocentric distance changes by 2.946 AU over every revolution.

One full revolution takes 3.04 yr (1,110 days), computed from the semi-major axis of 2.098 AU.

The high eccentricity (0.702) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

The orbital plane is tilted 9.58° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 49.2 km/s at perihelion and falls to 8.6 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 = 20.7 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.26 km.

Observation record and orbit quality

Astrometry from 82 individual observations underpins this orbit; the fit leaves an RMS residual of 0.6602 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
2.098 AU
Eccentricity
0.7021
Perihelion
0.625 AU
Aphelion
3.571006 AU
Inclination
9.58°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
139.46°

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
2073-Oct-21 09:49 0.427167 AU
63903212 km
31.24 km/s
2076-Nov-08 07:31 0.176695 AU
26433253 km
21.47 km/s
2079-Dec-13 07:46 0.264203 AU
39524186 km
15.51 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
20.7

Orbit Quality

RMS
0.6602
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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