SpaceAtlas Space Object Data
NASA JPL SBDB · 2019 TM2

2019 TM2

2019 TM2 is an Amor-type near-Earth asteroid that approaches Earth from beyond our orbit without crossing it, orbiting the Sun at 1.344 AU once every 1.56 yr.

Amor Observations: 51
Orbital Period · P
1.56 yr
v(q)
32.8 km/s
v(Q)
20.1 km/s
Diameter · ≈
0.05 km
TJ
4.86
Eccentricity · e
0.2395

Orbit and dynamics

The path is an ellipse reaching 1.022 AU from the Sun at perihelion and 1.666 AU at aphelion, a radial span of 0.644 AU.

Applying Kepler's third law to a = 1.344 AU gives an orbital period of 1.56 yr, or about 569 days.

An eccentricity of 0.239 makes the orbit moderately elongated.

Its inclination of 2.16° keeps it close to the plane of the ecliptic.

By the vis-viva equation its orbital speed rises to 32.8 km/s at perihelion and falls to 20.1 km/s at aphelion.

Its perihelion lies just outside Earth's orbit, which is why it is classed as Earth-approaching rather than Earth-crossing.

Size and surface

No direct size measurement is available; from an absolute magnitude of H = 24.2 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.05 km.

Observation record and orbit quality

The current orbit solution is based on 51 observations and has a weighted RMS residual of 0.5916 arcseconds.

Condition code U = 5 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
1.344 AU
Eccentricity
0.2395
Perihelion
1.022 AU
Aphelion
1.665888 AU
Inclination
2.16°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
85.7°

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
2031-Feb-20 14:42 0.462752 AU
69226752 km
6.61 km/s
2033-Nov-26 13:22 0.121925 AU
18239745 km
6.31 km/s
2044-Sep-13 10:39 0.347631 AU
52004815 km
13.11 km/s
2045-Jan-26 08:41 0.350763 AU
52473472 km
4.32 km/s
2047-Jul-28 01:51 0.371716 AU
55607850 km
4.49 km/s
2047-Dec-14 06:19 0.388781 AU
58160749 km
14.40 km/s
2058-Oct-06 10:36 0.092251 AU
13800507 km
5.13 km/s
2061-Jul-05 01:52 0.472074 AU
70621252 km
6.46 km/s
2070-Feb-27 23:53 0.495506 AU
74126710 km
7.15 km/s
2072-Nov-10 16:03 0.037861 AU
5663998 km
3.36 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
24.2

Orbit Quality

RMS
0.59155
Condition
5
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.

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