SpaceAtlas Space Object Data
NASA JPL SBDB · 2019 CS5

2019 CS5

2019 CS5 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.542 AU it takes 1.91 yr to circle the Sun.

Apollo Observations: 99
Orbital Period · P
1.91 yr
v(q)
35.5 km/s
v(Q)
16.2 km/s
Diameter · ≈
0.02 km
TJ
4.38
Eccentricity · e
0.3744

Orbit and dynamics

Between its closest point (0.965 AU) and its farthest (2.119 AU), the heliocentric distance changes by 1.154 AU over every revolution.

One full revolution takes 1.91 yr (699 days), computed from the semi-major axis of 1.542 AU.

An eccentricity of 0.374 makes the orbit moderately elongated.

Its inclination of 3.57° keeps it close to the plane of the ecliptic.

By the vis-viva equation its orbital speed rises to 35.5 km/s at perihelion and falls to 16.2 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 = 25.9 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.02 km.

Observation record and orbit quality

Astrometry from 99 individual observations underpins this orbit; the fit leaves an RMS residual of 0.5788 arcseconds.

Condition code U = 6 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
1.542 AU
Eccentricity
0.3744
Perihelion
0.965 AU
Aphelion
2.119325 AU
Inclination
3.57°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
284.6°

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
2040-May-07 18:22 0.167354 AU
25035852 km
13.87 km/s
2042-Jan-28 15:17 0.011733 AU
1755302 km
9.61 km/s
2063-Apr-16 02:47 0.060003 AU
8976320 km
7.32 km/s
2065-Jan-13 08:09 0.309152 AU
46248529 km
16.31 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
25.9

Orbit Quality

RMS
0.57883
Condition
6
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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