SpaceAtlas Space Object Data
NASA JPL SBDB · 2025 CT1

2025 CT1

2025 CT1 is an Aten-type near-Earth asteroid whose orbit lies mostly inside that of Earth, with a semi-major axis of 0.978 AU and a period of 0.97 yr.

Aten Observations: 41
Orbital Period · P
0.97 yr
v(q)
34 km/s
v(Q)
26.7 km/s
Diameter · ≈
0.03 km
TJ
6.18
Eccentricity · e
0.1191

Orbit and dynamics

The path is an ellipse reaching 0.861 AU from the Sun at perihelion and 1.094 AU at aphelion, a radial span of 0.233 AU.

Applying Kepler's third law to a = 0.978 AU gives an orbital period of 0.97 yr, or about 353 days.

An eccentricity of 0.119 makes the orbit moderately elongated.

Its inclination of 1.67° keeps it close to the plane of the ecliptic.

By the vis-viva equation its orbital speed rises to 34 km/s at perihelion and falls to 26.7 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 = 25.37 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.03 km.

Observation record and orbit quality

The current orbit solution is based on 41 observations and has a weighted RMS residual of 0.5371 arcseconds.

Condition code U = 4 indicates a moderately constrained orbit; predictions decades ahead still carry noticeable uncertainty.

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
0.9777 AU
Eccentricity
0.1191
Perihelion
0.861 AU
Aphelion
1.094144 AU
Inclination
1.67°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
0.55°

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
2051-Oct-24 01:47 0.031281 AU
4679511 km
4.51 km/s
2052-Aug-15 18:33 0.132814 AU
19868728 km
3.97 km/s
2052-Dec-22 15:46 0.108432 AU
16221149 km
3.60 km/s
2053-Jun-22 02:07 0.150450 AU
22506962 km
4.59 km/s
2054-Mar-02 17:07 0.066206 AU
9904265 km
2.74 km/s
2055-Mar-17 12:50 0.117485 AU
17575486 km
7.58 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
25.37

Orbit Quality

RMS
0.5371
Condition
4
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

Explore asteroids, comets and near-Earth objects with JPL orbital data.