SpaceAtlas Space Object Data
NASA JPL SBDB · 481052

481052

481052 is an Amor-type near-Earth asteroid that approaches Earth from beyond our orbit without crossing it, orbiting the Sun at 1.441 AU once every 1.73 yr.

Amor Observations: 132
Orbital Period · P
1.73 yr
v(q)
32.5 km/s
v(Q)
19 km/s
Diameter · ≈
0.27 km
TJ
4.55
Eccentricity · e
0.2624

Orbit and dynamics

Between its closest point (1.063 AU) and its farthest (1.819 AU), the heliocentric distance changes by 0.756 AU over every revolution.

One full revolution takes 1.73 yr (632 days), computed from the semi-major axis of 1.441 AU.

An eccentricity of 0.262 makes the orbit moderately elongated.

A steep inclination of 22.47° carries it well above and below the ecliptic plane.

By the vis-viva equation its orbital speed rises to 32.5 km/s at perihelion and falls to 19 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 = 20.57 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.27 km.

Observation record and orbit quality

Astrometry from 132 individual observations underpins this orbit; the fit leaves an RMS residual of 0.4292 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
1.441 AU
Eccentricity
0.2624
Perihelion
1.063 AU
Aphelion
1.819118 AU
Inclination
22.47°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
74.92°

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

No close approaches to Earth are currently on record for this object.

Physical Parameters

Diameter
— km
Albedo
—
Density
— g/cm³
Rotation Period
— h
Absolute Magnitude
20.57

Orbit Quality

RMS
0.42919
Condition
0
Orbit ID
—
Data source: NASA JPL Small-Body Database . 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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