SpaceAtlas Space Object Data
NASA JPL SBDB · 2005 JT1

2005 JT1

2005 JT1 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.419 AU it takes 1.69 yr to circle the Sun.

Apollo Observations: 31
Orbital Period · P
1.69 yr
v(q)
34.2 km/s
v(Q)
18.3 km/s
Diameter · ≈
0.03 km
TJ
4.66
Eccentricity · e
0.3023

Orbit and dynamics

The path is an ellipse reaching 0.99 AU from the Sun at perihelion and 1.848 AU at aphelion, a radial span of 0.858 AU.

Applying Kepler's third law to a = 1.419 AU gives an orbital period of 1.69 yr, or about 617 days.

An eccentricity of 0.302 makes the orbit moderately elongated.

Its inclination of 1.56° keeps it close to the plane of the ecliptic.

By the vis-viva equation its orbital speed rises to 34.2 km/s at perihelion and falls to 18.3 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 = 25.7 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 31 observations and has a weighted RMS residual of 0.3446 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
1.419 AU
Eccentricity
0.3023
Perihelion
0.99 AU
Aphelion
1.847964 AU
Inclination
1.56°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
153.24°

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
2049-Apr-17 22:57 0.175320 AU
26227572 km
13.32 km/s
2076-Mar-14 14:46 0.426766 AU
63843233 km
5.03 km/s
2076-Aug-10 04:47 0.249053 AU
37257858 km
13.17 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
25.7

Orbit Quality

RMS
0.3446
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

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