SpaceAtlas Space Object Data
NASA JPL SBDB · 2019 SW5

2019 SW5

2019 SW5 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.762 AU it takes 2.34 yr to circle the Sun.

Apollo Observations: 158
Orbital Period · P
2.34 yr
v(q)
39.7 km/s
v(Q)
12.7 km/s
Diameter · ≈
0.03 km
TJ
3.92
Eccentricity · e
0.5162

Orbit and dynamics

Between its closest point (0.852 AU) and its farthest (2.672 AU), the heliocentric distance changes by 1.82 AU over every revolution.

One full revolution takes 2.34 yr (854 days), computed from the semi-major axis of 1.762 AU.

The high eccentricity (0.516) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

The orbital plane is tilted 13.99° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 39.7 km/s at perihelion and falls to 12.7 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 = 25.15 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.03 km.

Observation record and orbit quality

Astrometry from 158 individual observations underpins this orbit; the fit leaves an RMS residual of 0.2907 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
1.762 AU
Eccentricity
0.5162
Perihelion
0.852 AU
Aphelion
2.671544 AU
Inclination
13.99°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
328.71°

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-Oct-10 12:53 0.209760 AU
31379676 km
20.54 km/s
2040-Oct-17 05:06 0.337576 AU
50500703 km
24.23 km/s
2047-Oct-24 10:59 0.463090 AU
69277275 km
27.92 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
25.15

Orbit Quality

RMS
0.29071
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.

Keep exploring

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