SpaceAtlas Space Object Data
NASA JPL SBDB · 2001 QE34

2001 QE34

2001 QE34 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 2.161 AU it takes 3.18 yr to circle the Sun.

Apollo Observations: 408
Orbital Period · P
3.18 yr
v(q)
51.5 km/s
v(Q)
8 km/s
Diameter · ≈
0.54 km
TJ
3.28
Eccentricity · e
0.7322

Orbit and dynamics

The path is an ellipse reaching 0.579 AU from the Sun at perihelion and 3.743 AU at aphelion, a radial span of 3.164 AU.

Applying Kepler's third law to a = 2.161 AU gives an orbital period of 3.18 yr, or about 1,160 days.

The high eccentricity (0.732) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

The orbital plane is tilted 5.62° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 51.5 km/s at perihelion and falls to 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 = 19.09 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.54 km.

Observation record and orbit quality

The current orbit solution is based on 408 observations and has a weighted RMS residual of 0.3995 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
2.161 AU
Eccentricity
0.7322
Perihelion
0.579 AU
Aphelion
3.743284 AU
Inclination
5.62°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
321.81°

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
2036-Mar-21 00:25 0.323590 AU
48408304 km
15.75 km/s
2039-Aug-03 13:30 0.196054 AU
29329305 km
17.07 km/s
2055-Mar-31 21:41 0.366105 AU
54768454 km
17.49 km/s
2058-Jul-31 22:00 0.228350 AU
34160601 km
16.48 km/s
2074-Apr-17 16:07 0.400641 AU
59935092 km
19.83 km/s
2077-Aug-19 16:26 0.086882 AU
12997350 km
23.37 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
19.09

Orbit Quality

RMS
0.39951
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.

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