SpaceAtlas Space Object Data
NASA JPL SBDB · 430802

430802

430802 is an Amor-type near-Earth asteroid that approaches Earth from beyond our orbit without crossing it, orbiting the Sun at 1.827 AU once every 2.47 yr.

Amor Observations: 108
Orbital Period · P
2.47 yr
v(q)
31.8 km/s
v(Q)
15.3 km/s
Diameter · ≈
0.21 km
TJ
3.95
Eccentricity · e
0.3522

Orbit and dynamics

The path is an ellipse reaching 1.184 AU from the Sun at perihelion and 2.47 AU at aphelion, a radial span of 1.286 AU.

Applying Kepler's third law to a = 1.827 AU gives an orbital period of 2.47 yr, or about 902 days.

An eccentricity of 0.352 makes the orbit moderately elongated.

The orbital plane is tilted 8.45° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 31.8 km/s at perihelion and falls to 15.3 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 = 21.15 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.21 km.

Observation record and orbit quality

The current orbit solution is based on 108 observations and has a weighted RMS residual of 0.534 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
1.827 AU
Eccentricity
0.3522
Perihelion
1.184 AU
Aphelion
2.470469 AU
Inclination
8.45°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
231.24°

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
21.15

Orbit Quality

RMS
0.53396
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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