SpaceAtlas Space Object Data
NASA JPL SBDB · 2026 TC2

2026 TC2

2026 TC2 is an Aten-type near-Earth asteroid whose orbit lies mostly inside that of Earth, with a semi-major axis of 0.92 AU and a period of 0.88 yr.

Aten Observations: 83
Orbital Period · P
0.88 yr
v(q)
73.9 km/s
v(Q)
13 km/s
Diameter · ≈
0.02 km
TJ
6.25
Eccentricity · e
0.7006

Orbit and dynamics

Between its closest point (0.276 AU) and its farthest (1.565 AU), the heliocentric distance changes by 1.289 AU over every revolution.

One full revolution takes 0.88 yr (322 days), computed from the semi-major axis of 0.92 AU.

The high eccentricity (0.701) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

The orbital plane is tilted 8.18° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 73.9 km/s at perihelion and falls to 13 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 = 25.87 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.02 km.

Observation record and orbit quality

Astrometry from 83 individual observations underpins this orbit; the fit leaves an RMS residual of 0.3674 arcseconds.

Condition code U = 7 signals a poorly constrained orbit, so its future path should be treated as provisional.

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
0.9202 AU
Eccentricity
0.7006
Perihelion
0.276 AU
Aphelion
1.564892 AU
Inclination
8.18°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
168.19°

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
2034-Oct-01 12:20 0.104900 AU
15692790 km
26.88 km/s
2046-Jul-14 16:35 0.142830 AU
21367108 km
20.91 km/s
2049-Oct-09 02:41 0.072548 AU
10852967 km
18.31 km/s
2072-Oct-07 13:01 0.002654 AU
397072 km
21.02 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
25.87

Orbit Quality

RMS
0.36742
Condition
7
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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