SpaceAtlas Space Object Data
NASA JPL SBDB · 2013 TF6

2013 TF6

2013 TF6 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.217 AU it takes 1.34 yr to circle the Sun.

Apollo Observations: 68
Orbital Period · P
1.34 yr
v(q)
38.8 km/s
v(Q)
18.8 km/s
Diameter · ≈
0.16 km
TJ
5.11
Eccentricity · e
0.3476

Orbit and dynamics

Between its closest point (0.794 AU) and its farthest (1.64 AU), the heliocentric distance changes by 0.846 AU over every revolution.

One full revolution takes 1.34 yr (490 days), computed from the semi-major axis of 1.217 AU.

An eccentricity of 0.348 makes the orbit moderately elongated.

A steep inclination of 22.57° carries it well above and below the ecliptic plane.

By the vis-viva equation its orbital speed rises to 38.8 km/s at perihelion and falls to 18.8 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 = 21.68 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.16 km.

Observation record and orbit quality

Astrometry from 68 individual observations underpins this orbit; the fit leaves an RMS residual of 0.5275 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
1.217 AU
Eccentricity
0.3476
Perihelion
0.794 AU
Aphelion
1.640029 AU
Inclination
22.57°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
256.09°

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
2052-Mar-23 14:08 0.165218 AU
24716329 km
17.03 km/s
2056-Apr-07 10:28 0.149773 AU
22405647 km
15.40 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
21.68

Orbit Quality

RMS
0.52754
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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