SpaceAtlas Space Object Data
NASA JPL SBDB · 267940

267940

267940 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.105 AU it takes 1.16 yr to circle the Sun.

Apollo Observations: 282
Orbital Period · P
1.16 yr
v(q)
50.7 km/s
v(Q)
15.8 km/s
Diameter · ≈
0.29 km
TJ
5.47
Eccentricity · e
0.5241

Orbit and dynamics

Between its closest point (0.526 AU) and its farthest (1.684 AU), the heliocentric distance changes by 1.158 AU over every revolution.

One full revolution takes 1.16 yr (424 days), computed from the semi-major axis of 1.105 AU.

The high eccentricity (0.524) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

The orbital plane is tilted 14.14° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 50.7 km/s at perihelion and falls to 15.8 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 = 20.43 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.29 km.

Observation record and orbit quality

Astrometry from 282 individual observations underpins this orbit; the fit leaves an RMS residual of 0.4004 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
1.105 AU
Eccentricity
0.5241
Perihelion
0.526 AU
Aphelion
1.68413 AU
Inclination
14.14°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
332.13°

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

Predicted close approaches to Earth, from NASA's Center for Near-Earth Object Studies (CNEOS).

Date (UTC)Miss distanceVelocity
2054-Mar-27 04:33 0.143699 AU
21497012 km
15.06 km/s
2061-Mar-22 21:52 0.105477 AU
15779202 km
19.47 km/s

Distances in astronomical units (AU) and kilometres. Source: NASA/JPL CNEOS Close Approach Data API.

Physical Parameters

Diameter
— km
Albedo
—
Density
— g/cm³
Rotation Period
— h
Absolute Magnitude
20.43

Orbit Quality

RMS
0.40039
Condition
0
Orbit ID
—
Data source: NASA JPL Small-Body Database · NASA CNEOS. 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.

Keep exploring

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