SpaceAtlas Space Object Data
NASA JPL SBDB · 2019 CT2

2019 CT2

2019 CT2 is an Amor-type near-Earth asteroid that approaches Earth from beyond our orbit without crossing it, orbiting the Sun at 1.501 AU once every 1.84 yr.

Amor Observations: 31
Orbital Period · P
1.84 yr
v(q)
29.6 km/s
v(Q)
19.9 km/s
Diameter · ≈
0.08 km
TJ
4.52
Eccentricity · e
0.1957

Orbit and dynamics

Between its closest point (1.207 AU) and its farthest (1.795 AU), the heliocentric distance changes by 0.588 AU over every revolution.

One full revolution takes 1.84 yr (672 days), computed from the semi-major axis of 1.501 AU.

An eccentricity of 0.196 makes the orbit moderately elongated.

Its inclination of 1.08° keeps it close to the plane of the ecliptic.

By the vis-viva equation its orbital speed rises to 29.6 km/s at perihelion and falls to 19.9 km/s at aphelion.

Its perihelion lies just outside Earth's orbit, which is why it is classed as Earth-approaching rather than Earth-crossing.

Size and surface

No direct size measurement is available; from an absolute magnitude of H = 23.34 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.08 km.

Observation record and orbit quality

Astrometry from 31 individual observations underpins this orbit; the fit leaves an RMS residual of 0.4154 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
1.501 AU
Eccentricity
0.1957
Perihelion
1.207 AU
Aphelion
1.794746 AU
Inclination
1.08°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
359.8°

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-08 01:42 0.221339 AU
33111806 km
0.73 km/s
2041-Jan-13 21:44 0.260968 AU
39040210 km
1.43 km/s
2043-May-11 16:18 0.476102 AU
71223862 km
5.12 km/s
2051-Dec-22 00:34 0.333419 AU
49878834 km
2.86 km/s
2054-Apr-24 17:15 0.399839 AU
59815126 km
3.84 km/s
2062-Dec-02 06:21 0.408661 AU
61134849 km
4.35 km/s
2065-Apr-04 05:00 0.317810 AU
47543671 km
2.40 km/s
2073-Nov-16 09:10 0.477346 AU
71409976 km
5.53 km/s
2076-Mar-11 02:31 0.245656 AU
36749623 km
1.09 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
23.34

Orbit Quality

RMS
0.41537
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.

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