SpaceAtlas Space Object Data
NASA JPL SBDB · 2019 CL2

2019 CL2

2019 CL2 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.356 AU it takes 1.58 yr to circle the Sun.

Apollo Observations: 137
Orbital Period · P
1.58 yr
v(q)
36 km/s
v(Q)
18.2 km/s
Diameter · ≈
0.08 km
TJ
4.8
Eccentricity · e
0.328

Orbit and dynamics

The path is an ellipse reaching 0.911 AU from the Sun at perihelion and 1.801 AU at aphelion, a radial span of 0.89 AU.

Applying Kepler's third law to a = 1.356 AU gives an orbital period of 1.58 yr, or about 577 days.

An eccentricity of 0.328 makes the orbit moderately elongated.

Its inclination of 1.44° keeps it close to the plane of the ecliptic.

By the vis-viva equation its orbital speed rises to 36 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 = 23.3 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.08 km.

Observation record and orbit quality

The current orbit solution is based on 137 observations and has a weighted RMS residual of 0.3948 arcseconds.

Condition code U = 2 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
1.356 AU
Eccentricity
0.328
Perihelion
0.911 AU
Aphelion
1.800768 AU
Inclination
1.44°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
182.29°

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
2030-Feb-03 10:54 0.395113 AU
59108040 km
5.27 km/s
2030-Jul-02 00:23 0.006575 AU
983610 km
7.96 km/s
2038-Apr-22 11:26 0.088318 AU
13212195 km
6.37 km/s
2046-Mar-08 02:39 0.096356 AU
14414671 km
10.83 km/s
2046-Aug-21 12:20 0.453155 AU
67790962 km
6.13 km/s
2054-Feb-20 04:57 0.379483 AU
56769873 km
19.36 km/s
2057-Jul-28 03:46 0.368027 AU
55056041 km
18.79 km/s
2065-Jan-25 05:37 0.454476 AU
67988615 km
6.59 km/s
2065-Jul-11 21:54 0.093774 AU
14028357 km
10.73 km/s
2073-May-25 08:50 0.090460 AU
13532571 km
6.38 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
23.3

Orbit Quality

RMS
0.39482
Condition
2
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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