SpaceAtlas Space Object Data
NASA JPL SBDB · 612064

612064

612064 is an Amor-type near-Earth asteroid that approaches Earth from beyond our orbit without crossing it, orbiting the Sun at 2.108 AU once every 3.06 yr.

Amor Observations: 67
Orbital Period · P
3.06 yr
v(q)
33.5 km/s
v(Q)
12.6 km/s
Diameter · ≈
0.21 km
TJ
3.6
Eccentricity · e
0.4552

Orbit and dynamics

Between its closest point (1.148 AU) and its farthest (3.068 AU), the heliocentric distance changes by 1.92 AU over every revolution.

One full revolution takes 3.06 yr (1,118 days), computed from the semi-major axis of 2.108 AU.

The high eccentricity (0.455) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

Its inclination of 4.83° keeps it close to the plane of the ecliptic.

By the vis-viva equation its orbital speed rises to 33.5 km/s at perihelion and falls to 12.6 km/s at aphelion.

Its perihelion lies just outside Earth's orbit, which is why it is classed as Earth-approaching rather than Earth-crossing.

Size and surface

No direct size measurement is available; from an absolute magnitude of H = 21.14 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.21 km.

Observation record and orbit quality

Astrometry from 67 individual observations underpins this orbit; the fit leaves an RMS residual of 0.5545 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
2.108 AU
Eccentricity
0.4552
Perihelion
1.148 AU
Aphelion
3.067562 AU
Inclination
4.83°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
34.67°

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
2047-Aug-03 01:44 0.176033 AU
26334190 km
4.41 km/s
2050-Aug-25 22:59 0.371441 AU
55566851 km
11.33 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
21.14

Orbit Quality

RMS
0.55446
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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