SpaceAtlas Space Object Data
NASA JPL SBDB · 2019 LT5

2019 LT5

2019 LT5 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.552 AU it takes 1.93 yr to circle the Sun.

Apollo Observations: 100
Orbital Period · P
1.93 yr
v(q)
42.5 km/s
v(Q)
13.4 km/s
Diameter · ≈
0.12 km
TJ
4.28
Eccentricity · e
0.5193

Orbit and dynamics

Between its closest point (0.746 AU) and its farthest (2.358 AU), the heliocentric distance changes by 1.612 AU over every revolution.

One full revolution takes 1.93 yr (706 days), computed from the semi-major axis of 1.552 AU.

The high eccentricity (0.519) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

Its inclination of 4.33° keeps it close to the plane of the ecliptic.

By the vis-viva equation its orbital speed rises to 42.5 km/s at perihelion and falls to 13.4 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 = 22.39 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.12 km.

Observation record and orbit quality

Astrometry from 100 individual observations underpins this orbit; the fit leaves an RMS residual of 0.3656 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
1.552 AU
Eccentricity
0.5193
Perihelion
0.746 AU
Aphelion
2.357954 AU
Inclination
4.33°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
257.91°

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
2046-Jun-19 10:28 0.368009 AU
55053363 km
24.92 km/s
2048-May-26 01:18 0.033473 AU
5007490 km
13.23 km/s
2050-Mar-13 02:49 0.256353 AU
38349823 km
12.57 km/s
2051-Dec-30 08:00 0.035513 AU
5312694 km
13.71 km/s
2053-Dec-06 15:17 0.412207 AU
61665344 km
26.55 km/s
2075-Jun-19 06:04 0.358124 AU
53574573 km
24.63 km/s
2077-May-25 07:42 0.046305 AU
6927066 km
12.85 km/s
2079-Mar-11 21:40 0.255583 AU
38234701 km
12.54 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
22.39

Orbit Quality

RMS
0.36558
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

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