SpaceAtlasSpace Object Data

454094

454094 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.015 AU it takes 1.02 yr to circle the Sun.

Apollo Observations: 190

Orbit and dynamics

Between its closest point (0.868 AU) and its farthest (1.162 AU), the heliocentric distance changes by 0.294 AU over every revolution.

One full revolution takes 1.02 yr (373 days), computed from the semi-major axis of 1.015 AU.

An eccentricity of 0.145 makes the orbit moderately elongated.

The orbital plane is tilted 11.85° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 34.2 km/s at perihelion and falls to 25.6 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 0.17 km, a value from direct size determination rather than from brightness alone.

A geometric albedo of 0.11 points to a comparatively bright, reflective surface.

Observation record and orbit quality

Astrometry from 190 individual observations underpins this orbit; the fit leaves an RMS residual of 0.3954 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
1.015 AU
Eccentricity
0.1447
Perihelion
0.868 AU
Aphelion
1.161871 AU
Inclination
11.85°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
314.48°

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
0.167 km
Albedo
0.11
Density
— g/cm³
Rotation Period
— h
Absolute Magnitude
21.87

Orbit Quality

RMS
0.39537
Condition
0
Orbit ID
—