SpaceAtlas Space Object Data
NASA JPL SBDB · 793531

793531

793531 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.375 AU it takes 1.61 yr to circle the Sun.

Apollo Observations: 124
Orbital Period · P
1.61 yr
v(q)
38.3 km/s
v(Q)
16.9 km/s
Diameter · ≈
0.16 km
TJ
4.73
Eccentricity · e
0.3882

Orbit and dynamics

Between its closest point (0.841 AU) and its farthest (1.909 AU), the heliocentric distance changes by 1.068 AU over every revolution.

One full revolution takes 1.61 yr (589 days), computed from the semi-major axis of 1.375 AU.

An eccentricity of 0.388 makes the orbit moderately elongated.

Its inclination of 4.26° keeps it close to the plane of the ecliptic.

By the vis-viva equation its orbital speed rises to 38.3 km/s at perihelion and falls to 16.9 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 = 21.71 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.16 km.

Observation record and orbit quality

Astrometry from 124 individual observations underpins this orbit; the fit leaves an RMS residual of 0.4478 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
1.375 AU
Eccentricity
0.3882
Perihelion
0.841 AU
Aphelion
1.908775 AU
Inclination
4.26°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
337.82°

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
21.71

Orbit Quality

RMS
0.44778
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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