SpaceAtlas Space Object Data
NASA JPL SBDB · 2014 TF17

2014 TF17

2014 TF17 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.733 AU it takes 2.28 yr to circle the Sun.

Apollo Observations: 68
Orbital Period · P
2.28 yr
v(q)
36.8 km/s
v(Q)
13.9 km/s
Diameter · ≈
0.25 km
TJ
3.75
Eccentricity · e
0.4527

Orbit and dynamics

The path is an ellipse reaching 0.949 AU from the Sun at perihelion and 2.518 AU at aphelion, a radial span of 1.569 AU.

Applying Kepler's third law to a = 1.733 AU gives an orbital period of 2.28 yr, or about 833 days.

The high eccentricity (0.453) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

A steep inclination of 43.64° carries it well above and below the ecliptic plane.

By the vis-viva equation its orbital speed rises to 36.8 km/s at perihelion and falls to 13.9 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 = 20.8 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.25 km.

Observation record and orbit quality

The current orbit solution is based on 68 observations and has a weighted RMS residual of 0.442 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
1.733 AU
Eccentricity
0.4527
Perihelion
0.949 AU
Aphelion
2.517529 AU
Inclination
43.64°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
347.49°

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
2030-Oct-28 11:15 0.452292 AU
67661952 km
22.14 km/s
2031-Apr-03 04:10 0.210469 AU
31485642 km
23.36 km/s
2046-Oct-28 00:02 0.442056 AU
66130650 km
23.61 km/s
2047-Mar-31 07:45 0.317536 AU
47502663 km
22.06 km/s
2062-Oct-26 06:00 0.483396 AU
72315018 km
25.73 km/s
2063-Mar-29 21:47 0.461348 AU
69016698 km
21.43 km/s
2072-Apr-13 10:31 0.376502 AU
56323918 km
29.13 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
20.8

Orbit Quality

RMS
0.44205
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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