SpaceAtlas Space Object Data
NASA JPL SBDB · 2019 TM

2019 TM

2019 TM belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 2.044 AU it takes 2.92 yr to circle the Sun.

Apollo Observations: 44
Orbital Period · P
2.92 yr
v(q)
41.4 km/s
v(Q)
10.5 km/s
Diameter · ≈
0.04 km
TJ
3.55
Eccentricity · e
0.5963

Orbit and dynamics

The path is an ellipse reaching 0.825 AU from the Sun at perihelion and 3.263 AU at aphelion, a radial span of 2.438 AU.

Applying Kepler's third law to a = 2.044 AU gives an orbital period of 2.92 yr, or about 1,067 days.

The high eccentricity (0.596) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

Its inclination of 3.76° keeps it close to the plane of the ecliptic.

By the vis-viva equation its orbital speed rises to 41.4 km/s at perihelion and falls to 10.5 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 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.04 km.

Observation record and orbit quality

The current orbit solution is based on 44 observations and has a weighted RMS residual of 0.3388 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
2.044 AU
Eccentricity
0.5963
Perihelion
0.825 AU
Aphelion
3.262837 AU
Inclination
3.76°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
87.92°

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-Feb-19 03:08 0.322983 AU
48317603 km
23.51 km/s
2054-Dec-30 09:31 0.142994 AU
21391542 km
10.85 km/s
2057-Sep-29 10:19 0.054405 AU
8138848 km
15.57 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
25.0

Orbit Quality

RMS
0.33876
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

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