SpaceAtlas Space Object Data
NASA JPL SBDB · 2016 CA32

2016 CA32

2016 CA32 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 2.504 AU it takes 3.96 yr to circle the Sun.

Apollo Observations: 71
Orbital Period · P
3.96 yr
v(q)
49.3 km/s
v(Q)
7.2 km/s
Diameter · ≈
0.39 km
TJ
2.95
Eccentricity · e
0.7455

Orbit and dynamics

Between its closest point (0.637 AU) and its farthest (4.371 AU), the heliocentric distance changes by 3.734 AU over every revolution.

One full revolution takes 3.96 yr (1,447 days), computed from the semi-major axis of 2.504 AU.

The high eccentricity (0.746) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

The orbital plane is tilted 19.75° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 49.3 km/s at perihelion and falls to 7.2 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 = 19.77 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.39 km.

Observation record and orbit quality

Astrometry from 71 individual observations underpins this orbit; the fit leaves an RMS residual of 0.4591 arcseconds.

Condition code U = 1 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
2.504 AU
Eccentricity
0.7455
Perihelion
0.637 AU
Aphelion
4.370732 AU
Inclination
19.75°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
233.86°

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
2027-Sep-14 08:55 0.327630 AU
49012812 km
18.11 km/s
2031-Aug-27 18:45 0.348123 AU
52078476 km
25.72 km/s
2075-Feb-12 05:38 0.245269 AU
36691793 km
24.09 km/s
2078-Dec-15 04:42 0.376556 AU
56331901 km
23.41 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
19.77

Orbit Quality

RMS
0.45907
Condition
1
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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