SpaceAtlas Space Object Data
NASA JPL SBDB · 419624

419624

419624 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.004 AU it takes 1.01 yr to circle the Sun.

Apollo Observations: 350
Orbital Period · P
1.01 yr
v(q)
32.1 km/s
v(Q)
27.6 km/s
Diameter · ≈
0.29 km
TJ
6.03
Eccentricity · e
0.0754

Orbit and dynamics

Between its closest point (0.928 AU) and its farthest (1.08 AU), the heliocentric distance changes by 0.152 AU over every revolution.

One full revolution takes 1.01 yr (367 days), computed from the semi-major axis of 1.004 AU.

With e = 0.075, the orbit is close to circular.

The orbital plane is tilted 14.51° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 32.1 km/s at perihelion and falls to 27.6 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

The measured diameter is 0.36 km, a value from direct size determination rather than from brightness alone.

Its geometric albedo of 0.084 indicates a very dark, carbonaceous-type surface.

Observation record and orbit quality

Astrometry from 350 individual observations underpins this orbit; the fit leaves an RMS residual of 0.5933 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
1.004 AU
Eccentricity
0.0754
Perihelion
0.928 AU
Aphelion
1.079702 AU
Inclination
14.51°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
70.41°

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
0.357 km
Albedo
0.084
Density
— g/cm³
Rotation Period
— h
Absolute Magnitude
20.44

Orbit Quality

RMS
0.59326
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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