SpaceAtlas Space Object Data
NASA JPL SBDB · 2019 MT3

2019 MT3

2019 MT3 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.246 AU it takes 1.39 yr to circle the Sun.

Apollo Observations: 21
Orbital Period · P
1.39 yr
v(q)
37.5 km/s
v(Q)
19 km/s
Diameter · ≈
0.09 km
TJ
5.08
Eccentricity · e
0.3272

Orbit and dynamics

Between its closest point (0.839 AU) and its farthest (1.654 AU), the heliocentric distance changes by 0.815 AU over every revolution.

One full revolution takes 1.39 yr (508 days), computed from the semi-major axis of 1.246 AU.

An eccentricity of 0.327 makes the orbit moderately elongated.

The orbital plane is tilted 11.27° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 37.5 km/s at perihelion and falls to 19 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 = 22.93 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.09 km.

Observation record and orbit quality

Astrometry from 21 individual observations underpins this orbit; the fit leaves an RMS residual of 0.5188 arcseconds.

Condition code U = 1 means the orbit is very well determined, leaving only a small uncertainty in the future ephemeris.

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
1.246 AU
Eccentricity
0.3272
Perihelion
0.839 AU
Aphelion
1.653691 AU
Inclination
11.27°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
69.64°

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
2033-Jan-03 07:41 0.053576 AU
8014896 km
9.65 km/s
2051-May-25 14:57 0.172382 AU
25788027 km
11.46 km/s
2065-Jan-21 20:48 0.132647 AU
19843635 km
8.58 km/s
2071-Dec-22 20:27 0.105681 AU
15809633 km
12.77 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
22.93

Orbit Quality

RMS
0.51883
Condition
1
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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