SpaceAtlas Space Object Data
NASA JPL SBDB · 2014 KE45

2014 KE45

2014 KE45 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.839 AU it takes 2.49 yr to circle the Sun.

Apollo Observations: 56
Orbital Period · P
2.49 yr
v(q)
53.9 km/s
v(Q)
8.9 km/s
Diameter · ≈
0.32 km
TJ
3.65
Eccentricity · e
0.7155

Orbit and dynamics

Between its closest point (0.523 AU) and its farthest (3.155 AU), the heliocentric distance changes by 2.632 AU over every revolution.

One full revolution takes 2.49 yr (911 days), computed from the semi-major axis of 1.839 AU.

The high eccentricity (0.716) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

The orbital plane is tilted 8.08° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 53.9 km/s at perihelion and falls to 8.9 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 = 20.2 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.32 km.

Observation record and orbit quality

Astrometry from 56 individual observations underpins this orbit; the fit leaves an RMS residual of 0.312 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
1.839 AU
Eccentricity
0.7155
Perihelion
0.523 AU
Aphelion
3.154805 AU
Inclination
8.08°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
258.18°

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
2029-Jul-04 05:51 0.214300 AU
32058794 km
17.55 km/s
2034-Jun-29 05:48 0.161603 AU
24175392 km
19.80 km/s
2039-Jun-25 07:36 0.135598 AU
20285227 km
21.91 km/s
2044-Jun-21 14:58 0.140671 AU
21044053 km
23.62 km/s
2049-Jun-18 04:20 0.176172 AU
26354998 km
25.75 km/s
2054-Jun-15 04:33 0.226186 AU
33837017 km
27.72 km/s
2059-Jun-12 05:04 0.280781 AU
42004261 km
29.68 km/s
2064-Jun-07 19:57 0.345153 AU
51634201 km
31.87 km/s
2069-Jun-04 05:45 0.420734 AU
62940869 km
34.28 km/s
2074-May-31 19:11 0.494596 AU
73990513 km
36.64 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
20.2

Orbit Quality

RMS
0.31205
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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