SpaceAtlas Space Object Data
NASA JPL SBDB · 2019 LR5

2019 LR5

2019 LR5 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.155 AU it takes 1.24 yr to circle the Sun.

Apollo Observations: 31
Orbital Period · P
1.24 yr
v(q)
42.3 km/s
v(Q)
18.2 km/s
Diameter · ≈
0.02 km
TJ
5.37
Eccentricity · e
0.399

Orbit and dynamics

Between its closest point (0.694 AU) and its farthest (1.616 AU), the heliocentric distance changes by 0.922 AU over every revolution.

One full revolution takes 1.24 yr (453 days), computed from the semi-major axis of 1.155 AU.

An eccentricity of 0.399 makes the orbit moderately elongated.

Its inclination of 1.27° keeps it close to the plane of the ecliptic.

By the vis-viva equation its orbital speed rises to 42.3 km/s at perihelion and falls to 18.2 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 = 26.2 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.02 km.

Observation record and orbit quality

Astrometry from 31 individual observations underpins this orbit; the fit leaves an RMS residual of 0.6607 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
1.155 AU
Eccentricity
0.399
Perihelion
0.694 AU
Aphelion
1.615845 AU
Inclination
1.27°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
178.68°

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
2029-May-21 00:05 0.402613 AU
60230005 km
25.81 km/s
2036-Jan-15 15:39 0.316079 AU
47284712 km
7.99 km/s
2040-May-01 20:39 0.420009 AU
62832417 km
9.33 km/s
2041-Feb-04 02:16 0.449614 AU
67261258 km
10.02 km/s
2052-Jan-10 16:35 0.317736 AU
47532639 km
25.61 km/s
2055-Jun-07 09:01 0.015289 AU
2287191 km
15.12 km/s
2056-Dec-31 05:06 0.109557 AU
16389435 km
18.91 km/s
2060-May-26 22:55 0.245725 AU
36759963 km
21.92 km/s
2061-Dec-19 22:07 0.011782 AU
1762493 km
11.42 km/s
2066-Oct-18 00:14 0.265144 AU
39665046 km
11.29 km/s
2067-Jan-14 19:45 0.318302 AU
47617328 km
7.92 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
26.2

Orbit Quality

RMS
0.66067
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.

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