SpaceAtlas Space Object Data
NASA JPL SBDB · 2017 KN34

2017 KN34

2017 KN34 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.61 AU it takes 2.04 yr to circle the Sun.

Apollo Observations: 50
Orbital Period · P
2.04 yr
v(q)
60.9 km/s
v(Q)
9 km/s
Diameter · ≈
0.41 km
TJ
3.68
Eccentricity · e
0.7418

Orbit and dynamics

Between its closest point (0.416 AU) and its farthest (2.804 AU), the heliocentric distance changes by 2.388 AU over every revolution.

One full revolution takes 2.04 yr (746 days), computed from the semi-major axis of 1.61 AU.

The high eccentricity (0.742) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

A steep inclination of 53.26° carries it well above and below the ecliptic plane.

By the vis-viva equation its orbital speed rises to 60.9 km/s at perihelion and falls to 9 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 = 19.69 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.41 km.

Observation record and orbit quality

Astrometry from 50 individual observations underpins this orbit; the fit leaves an RMS residual of 0.3866 arcseconds.

Condition code U = 1 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
1.61 AU
Eccentricity
0.7418
Perihelion
0.416 AU
Aphelion
2.804298 AU
Inclination
53.26°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
128.74°

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
2060-Apr-23 17:29 0.006957 AU
1040790 km
34.94 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
19.69

Orbit Quality

RMS
0.38658
Condition
1
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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