SpaceAtlas Space Object Data
NASA JPL SBDB · 435548

435548

435548 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 2.012 AU it takes 2.85 yr to circle the Sun.

Apollo Observations: 658
Orbital Period · P
2.85 yr
v(q)
37.8 km/s
v(Q)
11.7 km/s
Diameter · ≈
0.59 km
TJ
3.63
Eccentricity · e
0.5285

Orbit and dynamics

Between its closest point (0.949 AU) and its farthest (3.075 AU), the heliocentric distance changes by 2.126 AU over every revolution.

One full revolution takes 2.85 yr (1,042 days), computed from the semi-major axis of 2.012 AU.

The high eccentricity (0.528) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

The orbital plane is tilted 7.25° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 37.8 km/s at perihelion and falls to 11.7 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 = 18.88 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.59 km.

Observation record and orbit quality

Astrometry from 658 individual observations underpins this orbit; the fit leaves an RMS residual of 0.3667 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
2.012 AU
Eccentricity
0.5285
Perihelion
0.949 AU
Aphelion
3.075342 AU
Inclination
7.25°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
43.29°

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
18.88

Orbit Quality

RMS
0.36668
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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