SpaceAtlas Space Object Data
NASA JPL SBDB · 2005 QK76

2005 QK76

2005 QK76 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.398 AU it takes 1.65 yr to circle the Sun.

Apollo Observations: 14
Orbital Period · P
1.65 yr
v(q)
44.7 km/s
v(Q)
14.2 km/s
Diameter · ≈
0.03 km
TJ
4.54
Eccentricity · e
0.5176

Orbit and dynamics

The path is an ellipse reaching 0.674 AU from the Sun at perihelion and 2.122 AU at aphelion, a radial span of 1.448 AU.

Applying Kepler's third law to a = 1.398 AU gives an orbital period of 1.65 yr, or about 604 days.

The high eccentricity (0.518) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

A steep inclination of 22.87° carries it well above and below the ecliptic plane.

By the vis-viva equation its orbital speed rises to 44.7 km/s at perihelion and falls to 14.2 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 = 25.1 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.03 km.

Observation record and orbit quality

The current orbit solution is based on 14 observations and has a weighted RMS residual of 0.8744 arcseconds.

Condition code U = 9 signals a poorly constrained orbit, so its future path should be treated as provisional.

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
1.398 AU
Eccentricity
0.5176
Perihelion
0.674 AU
Aphelion
2.121605 AU
Inclination
22.87°
Orbital Period
— yr
Epoch
2453613.5
Mean Anomaly
36.21°

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
25.1

Orbit Quality

RMS
0.87438
Condition
9
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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